Statistics of Price Movements of Gopro Inc Cl A (GPRO)

The price movements of Gopro Inc Cl A (ticker GPRO) are summarized in five ways:

• Table 1. Statistics of daily price changes using the closing prices
• Table 2. Statistics of daily price changes using the closing and opening prices
• Table 3 – 7. Statistics of daily price changes when GPRO opened with an increase of 1%, 2%, 3%, 4%, or more than 5%
• Table 8 – 10. Statistics of stock price changes in the 20 days after GPRO had a big price move
• Table 11. Statistics of daily price changes in the 20 days after GPRO moved 5% with twice the 30-day average volume

The statistics are calculated using GPRO's price data across 1,547 trading days from 2015 to 2020.

Table 1. Statistics of GPRO one-day price changes

In this table, the one-day price change is calculated using the closing price and the previous day's closing price.

In the past 1,547 trading days, 47.5% of the time (734 days), GPRO closed above the previous day's closing price. 47.2% of the time (730 days), it closed below the previous day's closing price. 5.3% of the time (82 days), it did not change.

Also see: VIX price movement study.

GPRO Price Change (%)	Number of Days	% of Total Sessions
29 – 30%	1	0.06%
25 – 26%	1	0.06%
19 – 20%	2	0.13%
18 – 19%	1	0.06%
17 – 18%	1	0.06%
15 – 16%	1	0.06%
13 – 14%	2	0.13%
12 – 13%	6	0.39%
11 – 12%	3	0.19%
10 – 11%	5	0.32%
9 – 10%	7	0.45%
8 – 9%	8	0.52%
7 – 8%	10	0.65%
6 – 7%	13	0.84%
5 – 6%	25	1.62%
4 – 5%	40	2.59%
3 – 4%	93	6.02%
2 – 3%	143	9.25%
1 – 2%	195	12.61%
0 – 1%	177	11.45%
0%	82	5.30%
0 – -1%	196	12.68%
-1 – -2%	171	11.06%
-2 – -3%	118	7.63%
-3 – -4%	74	4.79%
-4 – -5%	58	3.75%
-5 – -6%	33	2.13%
-6 – -7%	23	1.49%
-7 – -8%	20	1.29%
-8 – -9%	9	0.58%
-9 – -10%	7	0.45%
-10 – -11%	4	0.26%
-11 – -12%	3	0.19%
-12 – -13%	4	0.26%
-13 – -14%	4	0.26%
-14 – -15%	1	0.06%
-15 – -16%	1	0.06%
-18 – -19%	1	0.06%
-19 – -20%	1	0.06%
-24 – -25%	1	0.06%
-26 – -27%	1	0.06%

Table 2. Statistics of GPRO: Closing vs. Open

In this table, instead of using the closing price of the previous day, the opening price is used to calculate the one-day price change of GPRO.

46.9% of the time (726 days), GPRO closed above the opening price. 48.1% of the time (744 days), it closed below the opening price. 5.0% of the time (77 days), it closed where it started.

Closing - Open (%)	Number of Days	% of Total Sessions
27 – 28%	1	0.06%
22 – 23%	1	0.06%
15 – 16%	1	0.06%
14 – 15%	2	0.13%
11 – 12%	3	0.19%
10 – 11%	6	0.39%
9 – 10%	6	0.39%
8 – 9%	7	0.45%
7 – 8%	8	0.52%
6 – 7%	15	0.97%
5 – 6%	25	1.62%
4 – 5%	51	3.30%
3 – 4%	72	4.65%
2 – 3%	137	8.86%
1 – 2%	179	11.57%
0 – 1%	212	13.70%
0%	77	4.98%
0 – -1%	202	13.06%
-1 – -2%	192	12.41%
-2 – -3%	124	8.02%
-3 – -4%	80	5.17%
-4 – -5%	54	3.49%
-5 – -6%	34	2.20%
-6 – -7%	17	1.10%
-7 – -8%	13	0.84%
-8 – -9%	13	0.84%
-9 – -10%	7	0.45%
-10 – -11%	1	0.06%
-11 – -12%	2	0.13%
-12 – -13%	2	0.13%
-13 – -14%	1	0.06%
-14 – -15%	1	0.06%
-19 – -20%	1	0.06%

Table 3. One-day performance when GPRO opened 5% higher than previous close

In the past 1,547 trading days, GPRO opened more than 5% higher than the previous day's closing price 18 times. Of these days, 27.8% (5 days) had closing prices above the opening price, and 72.2% (13 days) had closing prices below the opening price.

Closing - Open (%)	Number of Days	% of Total Sessions
7 – 8%	1	5.56%
3 – 4%	2	11.11%
2 – 3%	1	5.56%
1 – 2%	1	5.56%
0 – -1%	1	5.56%
-1 – -2%	2	11.11%
-2 – -3%	1	5.56%
-3 – -4%	2	11.11%
-4 – -5%	2	11.11%
-6 – -7%	1	5.56%
-7 – -8%	1	5.56%
-8 – -9%	2	11.11%
-13 – -14%	1	5.56%

Table 4. Closing vs. open when GPRO opened 4–5% higher

On 12 days, GPRO opened 4–5% higher than the previous day's closing price. Of these days, 50.0% (6 days) had closing prices above the opening price, and 50.0% (6 days) had closing prices below the opening price.

Closing - Open (%)	Number of Days	% of Total Sessions
9 – 10%	1	8.33%
4 – 5%	2	16.67%
2 – 3%	2	16.67%
1 – 2%	1	8.33%
-1 – -2%	1	8.33%
-2 – -3%	3	25.00%
-3 – -4%	1	8.33%
-4 – -5%	1	8.33%

Table 5. Closing vs. open when GPRO open 3 – 4% higher

24 times GPRO opened 3 – 4% higher than the previous day's closing price. Among these days, 29.2% (7 days) closed above the opening price, 70.8% (17 days) closed below the opening price.

Closing - Open (%)	Number of Days	% of Total Sessions
14 – 15%	1	4.17%
6 – 7%	1	4.17%
3 – 4%	3	12.50%
2 – 3%	1	4.17%
0 – 1%	1	4.17%
0 – -1%	5	20.83%
-1 – -2%	3	12.50%
-2 – -3%	4	16.67%
-3 – -4%	4	16.67%
-7 – -8%	1	4.17%

Table 6. Closing vs. open when GPRO open 2 – 3% higher

61 times GPRO opened 2 – 3% higher than the previous day's closing price. Among these days, 36.1% (22 days) closed above the opening price, 63.9% (39 days) closed below the opening price.

Closing - Open (%)	Number of Days	% of Total Sessions
15 – 16%	1	1.64%
10 – 11%	1	1.64%
9 – 10%	1	1.64%
6 – 7%	1	1.64%
4 – 5%	2	3.28%
3 – 4%	3	4.92%
2 – 3%	3	4.92%
1 – 2%	5	8.20%
0 – 1%	5	8.20%
0 – -1%	13	21.31%
-1 – -2%	7	11.48%
-2 – -3%	4	6.56%
-3 – -4%	5	8.20%
-4 – -5%	3	4.92%
-5 – -6%	1	1.64%
-6 – -7%	2	3.28%
-8 – -9%	1	1.64%
-9 – -10%	2	3.28%
-14 – -15%	1	1.64%

Table 7. Closing vs. open when GPRO open 1 – 2% higher

174 times GPRO opened 1 – 2% higher than the previous day's closing price. Among these days, 54.6% (95 days) closed above the opening price, 42.5% (74 days) closed below the opening price.

Closing - Open (%)	Number of Days	% of Total Sessions
27 – 28%	1	0.57%
22 – 23%	1	0.57%
11 – 12%	1	0.57%
10 – 11%	1	0.57%
9 – 10%	1	0.57%
8 – 9%	1	0.57%
7 – 8%	4	2.30%
5 – 6%	4	2.30%
4 – 5%	6	3.45%
3 – 4%	12	6.90%
2 – 3%	20	11.49%
1 – 2%	18	10.34%
0 – 1%	25	14.37%
0%	5	2.87%
0 – -1%	9	5.17%
-1 – -2%	25	14.37%
-2 – -3%	18	10.34%
-3 – -4%	4	2.30%
-4 – -5%	5	2.87%
-5 – -6%	4	2.30%
-7 – -8%	3	1.72%
-8 – -9%	4	2.30%
-9 – -10%	1	0.57%
-11 – -12%	1	0.57%

Table 8. Periods when GPRO moved 15% or more

In this table, we track the price movements in the 20 days after GPRO had a one-day price change of at least 15%.

Date	Price Change	Price Change after 15% Move
Days after:		1	4	7	10	13	16	19
20201007	29.2%	-3.1	7.8	6.2	2.2	.3	-4.7	8.2
20200319	25.1%	-6.1	-1.1	.0	-11.0	-3.4	2.7	.8
20170804	19.2%	3.1	-.7	.3	-8.1	-6.5	-6.0	-6.5
20160413	19%	-.7	-6.8	.6	-4.3	-12.0	-22.9	-29.4
20201109	18.5%	-2.7	3.0	15.4	-4.1	-1.2	7.6	20.0
20180803	17.6%	-5.2	-12.5	-13.9	-12.1	-8.9	-9.5	-11.1
20170316	15.7%	.7	-2.1	-.9	1.8	-.9	.5	2.1
20151029	-15.1%	-2.4	-.9	1.2	-9.6	-18.5	-20.2	-21.9
20200312	-18.7%	1.1	-21.6	-13.4	.4	-2.6	-14.9	1.5
20191003	-19%	-4.5	-15.5	-12.4	-8.5	-9.3	-4.7	-1.3
20181102	-24.2%	2.4	.6	-1.8	1.5	-2.2	-2.8	-2.0
20200316	-26.1%	13.9	23.4	29.9	31.3	16.9	26.9	34.8

Table 8a. GPRO average price changes following a 15% up day

Of the 1,547 trading days from 2015 to 2020, there were 7 days in which GPRO was up more than 15%. This table shows the average price changes over the 7 days.

Average Type	Average Price Change
Days after:	1	4	7	10	13	16	19
Avg for Change ≥ 15%	-2.0	-1.8	1.1	-5.1	-4.7	-4.6	-2.3

Table 8b. GPRO average price changes following a 15% down day

Of the 1,547 trading days from 2015 to 2020, there were 5 days in which GPRO was down more than -15%. This table shows the average price changes over the 5 days.

Average Type	Average Price Change
Days after:	1	4	7	10	13	16	19
Avg for Change ≥ -15%	2.1	-2.8	.7	3.0	-3.1	-3.1	2.2

Table 9. Periods when GPRO moved 10% or more

In this table, we track the price movements in the 20 days after GPRO had a one-day price change of at least 10%.

Date	Price Change	Price Change after 10% Move
Days after:		1	4	7	10	13	16	19
20201007	29.2%	-3.1	7.8	6.2	2.2	.3	-4.7	8.2
20200319	25.1%	-6.1	-1.1	.0	-11.0	-3.4	2.7	.8
20170804	19.2%	3.1	-.7	.3	-8.1	-6.5	-6.0	-6.5
20160413	19%	-.7	-6.8	.6	-4.3	-12.0	-22.9	-29.4
20201109	18.5%	-2.7	3.0	15.4	-4.1	-1.2	7.6	20.0
20180803	17.6%	-5.2	-12.5	-13.9	-12.1	-8.9	-9.5	-11.1
20170316	15.7%	.7	-2.1	-.9	1.8	-.9	.5	2.1
20200317	13.9%	-7.9	1.7	17.9	14.4	.0	19.2	25.8
20160711	13.3%	.2	-4.3	-12.3	-8.2	4.7	1.0	10.8
20150429	12.6%	-5.4	-9.9	-5.2	-5.9	-3.5	1.0	.8
20160728	12.5%	-2.9	2.2	9.8	7.3	18.2	16.1	15.2
20150217	12.4%	-11.2	-13.7	-12.3	-20.9	-21.2	-25.0	-22.7
20160216	12.4%	12.1	11.0	-2.2	2.6	15.3	6.0	5.9
20170907	12.3%	2.6	14.1	11.2	9.4	15.1	10.1	3.9
20160217	12%	-4.6	-6.8	-5.3	.2	6.9	-6.2	-9.9
20151210	11.4%	1.7	-.1	-3.9	-3.2	-2.9	-4.4	-2.2
20190514	11.3%	2.3	-4.1	-3.1	-8.1	-14.6	-17.6	-19.8
20200527	11%	-6.2	-2.3	.6	2.3	-7.2	-6.0	.0
20191011	10.6%	-2.7	1.6	.8	5.9	9.6	19.3	18.9
20200406	10.4%	.8	7.1	5.1	12.3	14.2	30.8	30.4
20160208	10.3%	3.6	-6.2	18.2	17.0	3.2	8.2	21.6
20200324	10.3%	1.6	2.7	-8.6	-.8	5.4	3.5	10.5
20201012	10%	1.6	.1	-3.7	-5.4	-10.1	2.0	-.4
20200309	-10%	9.3	-18.3	-36.6	-30.0	-18.9	-21.3	-31.2
20150909	-10.2%	.7	-.2	4.5	-3.0	-11.8	-10.6	-8.9
20171102	-10.2%	-4.7	-8.9	-12.5	-13.7	-10.1	-10.4	-9.9
20160308	-10.5%	-1.0	-1.1	4.4	4.5	.1	-2.0	-3.1
20200807	-11.1%	-3.0	-1.4	-.2	-2.8	-5.1	-7.1	-15.8
20150218	-11.2%	-.1	-2.9	-7.1	-4.9	-16.1	-12.2	-11.0
20181024	-11.3%	2.0	5.2	-9.5	-4.3	-9.2	-9.7	-12.8
20150113	-12.1%	5.0	-4.7	-3.0	3.1	-.2	4.0	-10.8
20170203	-12.6%	-.7	-8.8	-4.3	-3.4	-.7	.8	-3.2
20180108	-12.7%	-5.9	-5.0	-3.4	-4.0	-9.1	-16.6	-15.4
20190802	-12.7%	-2.7	1.4	-4.1	-8.7	-6.2	-9.8	-10.5
20150206	-13.3%	-5.6	-3.9	8.1	-4.4	-4.4	-15.3	-12.8
20200611	-13.5%	1.2	8.0	10.0	11.5	11.5	12.2	15.9
20200415	-13.6%	-3.0	3.2	11.7	33.5	22.2	26.7	27.8
20201119	-13.6%
20160114	-14.5%	-8.2	-11.9	-15.1	-15.3	-17.9	-20.2	-15.1
20151029	-15.1%	-2.4	-.9	1.2	-9.6	-18.5	-20.2	-21.9
20200312	-18.7%	1.1	-21.6	-13.4	.4	-2.6	-14.9	1.5
20191003	-19%	-4.5	-15.5	-12.4	-8.5	-9.3	-4.7	-1.3
20181102	-24.2%	2.4	.6	-1.8	1.5	-2.2	-2.8	-2.0
20200316	-26.1%	13.9	23.4	29.9	31.3	16.9	26.9	34.8

Table 9a. GPRO average price changes following a 10% up day

Of the 1,547 trading days from 2015 to 2020, there were 23 days in which GPRO was up more than 10%. This table shows the average price changes over the 23 days.

Average Type	Average Price Change
Days after:	1	4	7	10	13	16	19
Avg for Change ≥ 10%	-1.2	-.8	.6	-.7	.0	1.1	3.2

Table 9b. GPRO average price changes following a 10% down day

Of the 1,547 trading days from 2015 to 2020, there were 21 days in which GPRO was down more than -10%. This table shows the average price changes over the 21 days.

Average Type	Average Price Change
Days after:	1	4	7	10	13	16	19
Avg for Change ≥ -10%	-.4	-3.1	-2.5	-.4	-3.1	-3.9	-5.0

Table 10. Periods when GPRO moved 5% or more

In this table, we track the price movements in the 20 days after GPRO had a one-day price change of at least 5%.

Date	Price Change	Price Change after 5% Move
Days after:		1	4	7	10	13	16	19
20201007	29.2%	-3.1	7.8	6.2	2.2	.3	-4.7	8.2
20200319	25.1%	-6.1	-1.1	.0	-11.0	-3.4	2.7	.8
20170804	19.2%	3.1	-.7	.3	-8.1	-6.5	-6.0	-6.5
20160413	19%	-.7	-6.8	.6	-4.3	-12.0	-22.9	-29.4
20201109	18.5%	-2.7	3.0	15.4	-4.1	-1.2	7.6	20.0
20180803	17.6%	-5.2	-12.5	-13.9	-12.1	-8.9	-9.5	-11.1
20170316	15.7%	.7	-2.1	-.9	1.8	-.9	.5	2.1
20200317	13.9%	-7.9	1.7	17.9	14.4	.0	19.2	25.8
20160711	13.3%	.2	-4.3	-12.3	-8.2	4.7	1.0	10.8
20150429	12.6%	-5.4	-9.9	-5.2	-5.9	-3.5	1.0	.8
20160728	12.5%	-2.9	2.2	9.8	7.3	18.2	16.1	15.2
20150217	12.4%	-11.2	-13.7	-12.3	-20.9	-21.2	-25.0	-22.7
20160216	12.4%	12.1	11.0	-2.2	2.6	15.3	6.0	5.9
20170907	12.3%	2.6	14.1	11.2	9.4	15.1	10.1	3.9
20160217	12%	-4.6	-6.8	-5.3	.2	6.9	-6.2	-9.9
20151210	11.4%	1.7	-.1	-3.9	-3.2	-2.9	-4.4	-2.2
20190514	11.3%	2.3	-4.1	-3.1	-8.1	-14.6	-17.6	-19.8
20200527	11%	-6.2	-2.3	.6	2.3	-7.2	-6.0	.0
20191011	10.6%	-2.7	1.6	.8	5.9	9.6	19.3	18.9
20200406	10.4%	.8	7.1	5.1	12.3	14.2	30.8	30.4
20160208	10.3%	3.6	-6.2	18.2	17.0	3.2	8.2	21.6
20200324	10.3%	1.6	2.7	-8.6	-.8	5.4	3.5	10.5
20201012	10%	1.6	.1	-3.7	-5.4	-10.1	2.0	-.4
20180504	9.8%	-.4	2.0	5.3	-.6	.4	1.8	1.7
20160302	9.5%	4.3	-4.7	-3.2	-5.5	.4	-4.6	-10.5
20200310	9.3%	-9.1	-44.8	-27.5	-29.4	-31.9	-31.6	-30.5
20200417	9.3%	.7	2.5	17.4	17.0	15.2	18.8	24.1
20181101	9.2%	-24.2	-19.9	-24.0	-24.4	-27.0	-28.6	-24.4
20160815	9.1%	-1.4	-3.1	-3.9	-4.7	-6.9	-6.7	-17.7
20200427	9%	2.2	1.9	.3	3.4	8.0	24.2	28.4
20200515	8.8%	2.6	10.2	14.2	23.6	24.7	36.2	12.1
20150123	8.6%	-4.0	-3.2	3.9	-10.3	-14.7	-13.8	-14.0
20151218	8.6%	-7.2	-6.6	-6.3	-7.6	-5.6	-21.7	-36.0
20160226	8.4%	-3.4	10.4	.9	2.4	.1	6.3	1.0
20160129	8.3%	-3.4	-14.6	-.5	-10.0	13.4	12.3	-1.0
20160915	8.3%	5.6	5.7	19.5	17.2	19.3	15.4	1.0
20160617	8.2%	1.9	6.3	-1.6	3.8	-.6	16.7	15.3
20201117	8.1%
20170124	7.7%	-1.3	6.6	8.3	-7.8	-12.1	-6.8	-8.7
20150720	7.3%	2.0	2.3	1.8	2.4	3.4	-2.7	-3.2
20190927	7.3%	3.2	-17.3	-31.5	-25.6	-27.0	-27.4	-23.4
20160922	7.2%	6.9	5.9	4.3	4.6	-6.4	-15.3	-8.4
20170130	7.2%	-.5	-11.3	-18.1	-16.2	-13.6	-12.4	-12.7
20200429	7.2%	-.8	-9.6	-3.0	-.3	10.1	18.3	22.5
20180214	7.1%	-.9	-1.8	-1.4	-5.1	1.1	1.2	-.7
20180412	7.1%	.8	-3.1	-7.9	-5.4	-5.9	4.4	9.2
20151028	7%	-15.2	-17.2	-16.8	-16.9	-28.4	-34.0	-36.0
20200408	7%	-.7	12.8	3.3	1.5	18.7	28.9	17.6
20200414	6.9%	-13.6	-7.8	-6.2	7.5	7.1	5.5	8.8
20160923	6.8%	-1.3	-3.2	-1.5	-4.7	-16.6	-18.0	-14.0
20180611	6.8%	5.3	-.2	6.4	3.7	2.4	4.8	11.2
20150304	6.7%	-4.5	-10.0	-6.7	-5.4	-2.2	.5	.9
20200608	6.7%	-2.5	-16.8	-11.2	-9.5	-8.3	-8.3	-7.7
20201201	6.7%
20150528	6.6%	-2.4	3.9	4.6	-1.4	2.4	2.0	.4
20150916	6.4%	1.7	-6.8	-9.6	-12.6	-15.3	-22.8	-21.7
20170911	6.4%	-.3	5.5	-2.4	2.4	5.1	1.6	-9.5
20200330	6.4%	-.8	-13.3	3.4	9.1	-2.3	4.0	12.5
20150121	6.2%	-3.9	2.2	-1.1	3.1	-11.6	-9.9	1.3
20200413	6.2%	6.9	-2.1	-3.8	12.5	22.2	11.5	19.6
20180416	6%	-9.7	-9.1	-12.9	-9.3	-11.1	1.8	2.9
20160803	5.9%	1.7	9.3	7.5	15.9	14.3	12.0	11.7
20180620	5.9%	1.1	-.6	-3.0	-1.5	3.5	-6.6	-2.0
20190910	5.9%	1.1	.4	-1.3	-3.2	8.8	11.0	-19.9
20191108	5.9%	-4.9	-.6	-14.4	-14.2	-15.5	-18.7	-14.2
20190909	5.8%	6.0	4.6	3.7	9.4	7.3	21.1	-8.9
20150102	5.7%	-1.0	-10.1	-25.4	-29.0	-24.8	-24.6	-24.0
20201006	5.7%	29.2	37.1	41.5	35.5	37.6	22.6	17.9
20160916	5.6%	2.3	7.3	12.2	11.5	14.5	4.7	-7.5
20181011	5.6%	4.5	10.0	6.9	-1.0	2.1	-12.1	-7.1
20190104	5.6%	2.7	8.4	8.9	8.9	7.3	8.6	9.3
20200803	5.6%	-2.5	-11.6	-14.7	-12.7	-12.9	-17.0	-15.0
20150601	5.5%	-.2	1.5	-1.0	.0	-.4	-3.0	-7.5
20150714	5.4%	-.9	10.6	16.3	13.6	13.0	14.0	17.8
20151009	5.3%	-2.1	-1.9	4.2	.2	3.9	-12.1	-14.7
20180706	5.3%	-1.0	-10.7	-6.2	-9.8	-9.1	-18.0	-13.7
20181030	5.3%	4.0	-11.9	-13.4	-15.5	-12.7	-15.8	-16.3
20201113	5.3%	2.8	-3.2	-5.6	.3	9.1	21.8	21.1
20160316	5.2%	5.2	5.4	.9	-1.2	-2.3	-.2	-5.1
20180404	5.2%	2.7	-.4	10.0	5.9	.6	3.3	2.7
20180612	5.2%	-2.0	-1.2	2.1	.5	-2.0	-.5	4.6
20190509	5.2%	-3.9	13.2	6.1	7.2	1.6	-5.5	-8.8
20160317	5.1%	-.5	-5.3	-11.2	-7.6	-10.0	-4.9	7.3
20151216	5%	-4.6	-2.6	-3.2	-2.2	-.7	-9.7	-22.4
20191101	5%	2.1	1.7	4.3	5.0	-8.0	-8.2	-8.9
20200205	5%	-9.2	-8.0	-7.6	-7.0	-12.6	-15.8	-9.9
20151118	-5%	.6	-2.5	2.4	1.4	-11.6	-4.9	-9.6
20170313	-5%	-4.4	13.2	10.0	11.4	14.4	11.4	12.9
20171016	-5%	1.7	4.4	5.9	13.9	5.5	-2.5	-6.3
20180423	-5.1%	2.5	1.5	3.3	12.9	15.6	19.3	12.7
20191202	-5.1%	.8	8.6	11.7	15.7	14.0	19.3	12.1
20201028	-5.1%	.5	14.1	11.4	30.6	11.2	12.7	15.0
20150622	-5.2%	3.4	-1.4	-5.4	-7.2	-5.2	.1	3.1
20160627	-5.2%	2.6	8.2	3.7	21.7	20.3	7.8	8.5
20180126	-5.2%	-5.8	-2.7	-.4	-3.4	.4	-2.8	-3.4
20180720	-5.2%	-1.1	3.0	-6.7	12.6	3.4	-2.6	-4.0
20180806	-5.2%	-.7	-10.8	-12.7	-4.0	-4.6	-7.0	-4.0
20200910	-5.2%	-1.1	6.3	7.9	9.0	21.9	20.3	69.1
20160323	-5.3%	1.2	-5.1	-4.3	-1.2	-4.1	12.5	5.5
20160909	-5.3%	2.7	10.2	11.0	33.5	32.2	30.3	30.7
20170208	-5.3%	-1.1	3.7	4.6	7.6	9.3	4.9	-10.3
20150309	-5.4%	2.1	5.7	7.2	10.9	13.9	14.4	10.6
20150430	-5.4%	-.2	-3.8	-2.5	1.1	3.5	8.7	6.4
20180402	-5.4%	.2	7.7	7.5	23.2	13.2	8.8	7.7
20150902	-5.5%	-6.4	-9.2	-21.5	-13.4	-21.8	-17.8	-27.7
20150209	-5.6%	-1.5	1.8	1.6	-1.2	.4	-9.4	-9.8
20200402	-5.6%	-2.6	16.2	22.6	9.8	16.8	26.4	51.1
20151203	-5.7%	-4.9	-10.8	-8.6	-5.2	-3.1	-3.8	-2.8
20160111	-5.7%	-4.3	-24.9	-27.9	-30.6	-30.7	-32.9	-34.7
20190823	-5.7%	.0	-.8	-3.5	4.0	17.9	17.2	15.2
20201026	-5.7%	-.3	-7.6	5.0	11.0	24.4	3.4	6.5
20150401	-5.8%	2.6	6.6	10.7	11.7	9.8	12.7	15.0
20151008	-5.8%	5.4	1.8	7.4	4.1	2.3	-9.4	-8.0
20160223	-5.8%	-3.0	-1.9	12.1	2.5	4.0	1.7	7.9
20160610	-5.8%	-2.8	-4.1	9.2	5.1	5.4	7.7	5.0
20180129	-5.8%	2.8	4.3	5.5	-1.1	5.6	4.7	5.1
20190528	-5.8%	-1.5	-9.7	-12.5	-11.2	-14.9	-11.9	-15.6
20200903	-5.8%	-1.2	-8.9	-6.5	-3.4	-1.4	7.5	11.1
20180109	-5.9%	-1.9	1.0	1.6	-.8	-8.4	-11.3	-10.5
20150227	-6%	-4.9	-2.1	-7.7	-4.4	-3.1	.2	3.0
20160505	-6%	-2.3	-11.7	-16.6	-17.4	-9.3	-4.8	-3.6
20161031	-6%	-2.3	-12.7	-18.5	-19.0	-21.9	-23.4	-22.6
20200320	-6%	-6.0	8.9	5.6	-7.7	10.1	16.1	4.0
20200323	-6%	10.3	6.4	6.9	8.6	16.3	32.2	21.0
20180320	-6.1%	-1.6	-5.4	-4.2	-9.2	-2.4	-2.6	11.6
20181004	-6.1%	.0	-6.4	7.7	7.3	8.3	-2.4	5.0
20150901	-6.2%	-5.5	-15.7	-22.5	-23.2	-19.5	-25.3	-32.1
20190924	-6.2%	3.4	16.0	-7.0	-23.0	-16.3	-17.9	-18.3
20200501	-6.2%	-1.5	2.1	3.0	15.5	25.3	26.1	37.3
20200528	-6.2%	4.0	4.9	14.6	-5.7	1.1	.2	2.4
20150903	-6.3%	-4.7	-12.9	-14.9	-6.0	-13.8	-16.4	-19.2
20171004	-6.3%	-6.9	-6.2	-8.0	-8.9	-9.5	-5.1	.4
20190228	-6.4%	4.3	5.5	7.2	5.3	7.4	10.5	13.0
20160509	-6.5%	.4	-9.2	-10.0	-5.3	2.0	5.0	9.6
20161104	-6.5%	-4.7	-8.5	-9.1	-10.2	-11.5	-12.1	-12.0
20150112	-6.6%	-12.2	-16.3	-11.4	-11.2	-10.5	-3.9	-17.0
20160512	-6.7%	.7	-.2	5.0	13.2	16.4	21.5	25.4
20181220	-6.7%	-3.5	-1.4	-.9	-.2	10.5	16.6	15.0
20200129	-6.7%	-2.2	-.2	-3.1	-1.7	-3.1	-3.1	-11.8
20160920	-6.8%	5.0	18.7	16.4	18.4	14.6	.3	-1.3
20191007	-6.8%	-7.0	1.1	-.8	-1.4	4.1	11.9	18.1
20171005	-6.9%	2.2	-.4	-6.1	-4.8	-2.8	3.4	10.3
20160210	-7%	-4.0	9.4	16.9	11.0	12.2	28.2	17.2
20160719	-7%	-1.0	3.6	18.3	14.0	25.1	28.4	41.8
20161024	-7%	.0	-2.0	-7.5	-23.3	-26.4	-26.9	-27.8
20161103	-7%	-6.5	-12.8	-13.3	-16.4	-18.0	-17.2	-16.4
20191008	-7%	2.0	5.8	10.5	9.6	15.1	19.2	29.7
20150115	-7.1%	-2.2	3.5	3.8	4.7	12.3	-3.0	-7.8
20151123	-7.1%	1.7	6.8	5.8	-7.8	-.8	-5.7	2.7
20151221	-7.1%	1.3	.7	1.7	3.3	-6.1	-19.3	-36.7
20150820	-7.4%	-4.4	-8.5	-7.9	-23.6	-25.9	-35.9	-29.4
20160202	-7.4%	4.6	7.3	-.7	13.2	20.9	14.7	16.0
20160328	-7.4%	1.3	2.1	5.4	2.3	20.0	12.6	21.6
20180727	-7.4%	-4.7	.3	11.1	-.2	-2.3	7.4	6.7
20200305	-7.4%	-1.1	-11.5	-46.3	-29.4	-31.3	-33.7	-33.4
20160107	-7.6%	-4.8	-14.1	-32.6	-37.2	-36.0	-32.6	-37.0
20151112	-7.7%	-8.6	-14.4	-18.0	-13.6	-13.0	-22.2	-27.0
20160119	-7.7%	4.1	.2	.0	-3.1	-5.8	.2	-2.5
20170428	-7.7%	3.3	.1	.7	3.5	1.7	7.4	2.7
20180711	-7.7%	-.5	4.5	.5	1.3	-8.7	-3.9	6.4
20200318	-7.8%	25.1	21.8	17.5	18.0	19.9	28.4	46.0
20170306	-7.9%	-2.6	-2.1	-9.7	6.4	2.7	5.3	6.9
20150921	-8.1%	3.2	.1	-3.3	-6.2	-14.5	-13.3	-11.6
20150928	-8.1%	.6	2.6	-1.1	-4.1	-3.8	2.2	-1.8
20160115	-8.1%	.0	-6.8	-5.1	-.1	-6.5	-4.1	-11.3
20200327	-8.1%	6.5	-5.2	2.8	9.3	7.3	14.5	16.5
20160425	-8.2%	2.8	-1.4	-11.1	-23.7	-31.2	-29.9	-28.6
20191226	-8.3%	2.5	3.6	6.7	5.5	-1.0	2.4	5.0
20151113	-8.5%	2.2	-5.8	-8.7	-4.2	-5.1	-17.2	-11.0
20150811	-8.6%	-3.8	-1.0	-14.4	-20.5	-18.5	-30.2	-37.7
20160204	-8.6%	1.8	8.3	5.4	26.7	23.8	25.8	33.1
20181003	-9%	-6.1	-8.7	-3.0	2.1	-.7	-8.1	-5.2
20200311	-9%	-18.7	-30.8	-25.1	-21.1	-20.2	-29.0	-23.0
20200206	-9.1%	1.8	3.3	1.8	1.8	-7.3	-4.2	2.0
20191118	-9.3%	-3.1	-2.9	-4.3	-7.9	-2.9	3.4	6.2
20180518	-9.5%	.7	2.2	3.3	1.5	8.5	15.1	14.8
20151214	-9.6%	3.5	12.7	5.5	3.5	4.0	6.8	-6.5
20180417	-9.6%	.4	-4.6	-2.0	-2.6	8.1	13.1	12.1
20200309	-10%	9.3	-18.3	-36.6	-30.0	-18.9	-21.3	-31.2
20150909	-10.2%	.7	-.2	4.5	-3.0	-11.8	-10.6	-8.9
20171102	-10.2%	-4.7	-8.9	-12.5	-13.7	-10.1	-10.4	-9.9
20160308	-10.5%	-1.0	-1.1	4.4	4.5	.1	-2.0	-3.1
20200807	-11.1%	-3.0	-1.4	-.2	-2.8	-5.1	-7.1	-15.8
20150218	-11.2%	-.1	-2.9	-7.1	-4.9	-16.1	-12.2	-11.0
20181024	-11.3%	2.0	5.2	-9.5	-4.3	-9.2	-9.7	-12.8
20150113	-12.1%	5.0	-4.7	-3.0	3.1	-.2	4.0	-10.8
20170203	-12.6%	-.7	-8.8	-4.3	-3.4	-.7	.8	-3.2
20180108	-12.7%	-5.9	-5.0	-3.4	-4.0	-9.1	-16.6	-15.4
20190802	-12.7%	-2.7	1.4	-4.1	-8.7	-6.2	-9.8	-10.5
20150206	-13.3%	-5.6	-3.9	8.1	-4.4	-4.4	-15.3	-12.8
20200611	-13.5%	1.2	8.0	10.0	11.5	11.5	12.2	15.9
20200415	-13.6%	-3.0	3.2	11.7	33.5	22.2	26.7	27.8
20201119	-13.6%
20160114	-14.5%	-8.2	-11.9	-15.1	-15.3	-17.9	-20.2	-15.1
20151029	-15.1%	-2.4	-.9	1.2	-9.6	-18.5	-20.2	-21.9
20200312	-18.7%	1.1	-21.6	-13.4	.4	-2.6	-14.9	1.5
20191003	-19%	-4.5	-15.5	-12.4	-8.5	-9.3	-4.7	-1.3
20181102	-24.2%	2.4	.6	-1.8	1.5	-2.2	-2.8	-2.0
20200316	-26.1%	13.9	23.4	29.9	31.3	16.9	26.9	34.8

Table 10a. GPRO average price changes following a 5% up day

Of the 1,547 trading days from 2015 to 2020, there were 86 days in which GPRO was up more than 5%. This table shows the average price changes over the 86 days.

Average Type	Average Price Change
Days after:	1	4	7	10	13	16	19
Avg for Change ≥ 5%	-.7	-1.5	-.8	-1.3	-.9	-.8	-1.5

Table 10b. GPRO average price changes following a 5% down day

Of the 1,547 trading days from 2015 to 2020, there were 113 days in which GPRO was down more than -5%. This table shows the average price changes over the 113 days.

Average Type	Average Price Change
Days after:	1	4	7	10	13	16	19
Avg for Change ≥ -5%	-.6	-1.1	-1.5	-.3	-.2	-.2	.3

28 stocks with statistics: AAPL, AMD, AMZN, APPN, AZN, BA, BAC, BIIB, CRM, CSCO, CX, DIS, FB, GE, GM, GOOG, IBM, INTC, JPM, JPM, MSFT, MU, NFLX, O, QQQ, SPY, T, TSLA,

Also see: VIX price movement study.