Statistics of Price Movements of Alcon Inc (ALC)

The price movements of Alcon Inc (ticker ALC) 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 ALC 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 ALC had a big price move
• Table 11. Statistics of daily price changes in the 20 days after ALC moved 5% with twice the 30-day average volume

The statistics are calculated using ALC's price data across 436 trading days from 2019 to 2020.

Table 1. Statistics of ALC 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 436 trading days, 49.4% of the time (215 days), ALC closed above the previous day's closing price. 47.8% of the time (208 days), it closed below the previous day's closing price. 2.8% of the time (12 days), it did not change.

Also see: VIX price movement study.

ALC Price Change (%)	Number of Days	% of Total Sessions
13 – 14%	1	0.23%
8 – 9%	1	0.23%
7 – 8%	1	0.23%
6 – 7%	2	0.46%
5 – 6%	3	0.69%
4 – 5%	5	1.15%
3 – 4%	7	1.61%
2 – 3%	24	5.52%
1 – 2%	52	11.95%
0 – 1%	119	27.36%
0%	12	2.76%
0 – -1%	122	28.05%
-1 – -2%	42	9.66%
-2 – -3%	25	5.75%
-3 – -4%	11	2.53%
-4 – -5%	3	0.69%
-5 – -6%	1	0.23%
-6 – -7%	2	0.46%
-7 – -8%	1	0.23%
-10 – -11%	1	0.23%

Table 2. Statistics of ALC: 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 ALC.

53.9% of the time (235 days), ALC closed above the opening price. 42.9% of the time (187 days), it closed below the opening price. 3.2% of the time (14 days), it closed where it started.

Closing - Open (%)	Number of Days	% of Total Sessions
8 – 9%	1	0.23%
7 – 8%	1	0.23%
4 – 5%	2	0.46%
3 – 4%	4	0.92%
2 – 3%	15	3.44%
1 – 2%	50	11.47%
0 – 1%	162	37.16%
0%	14	3.21%
0 – -1%	135	30.96%
-1 – -2%	34	7.80%
-2 – -3%	14	3.21%
-3 – -4%	4	0.92%

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

In the past 436 trading days, ALC opened more than 5% higher than the previous day's closing price 5 times. Of these days, 40.0% (2 days) had closing prices above the opening price, and 60.0% (3 days) had closing prices below the opening price.

Closing - Open (%)	Number of Days	% of Total Sessions
7 – 8%	1	20.00%
0 – 1%	1	20.00%
-1 – -2%	1	20.00%
-2 – -3%	2	40.00%

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

On 1 days, ALC opened 4–5% higher than the previous day's closing price. Of these days, 0.0% (0 days) had closing prices above the opening price, and 100.0% (1 days) had closing prices below the opening price.

Closing - Open (%)	Number of Days	% of Total Sessions
-1 – -2%	1	100.00%

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

3 times ALC opened 3 – 4% higher than the previous day's closing price. Among these days, 66.7% (2 days) closed above the opening price, 33.3% (1 days) closed below the opening price.

Closing - Open (%)	Number of Days	% of Total Sessions
2 – 3%	1	33.33%
0 – 1%	1	33.33%
-2 – -3%	1	33.33%

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

15 times ALC opened 2 – 3% higher than the previous day's closing price. Among these days, 66.7% (10 days) closed above the opening price, 33.3% (5 days) closed below the opening price.

Closing - Open (%)	Number of Days	% of Total Sessions
3 – 4%	1	6.67%
1 – 2%	1	6.67%
0 – 1%	8	53.33%
0 – -1%	2	13.33%
-1 – -2%	2	13.33%
-2 – -3%	1	6.67%

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

44 times ALC opened 1 – 2% higher than the previous day's closing price. Among these days, 52.3% (23 days) closed above the opening price, 47.7% (21 days) closed below the opening price.

Closing - Open (%)	Number of Days	% of Total Sessions
3 – 4%	1	2.27%
2 – 3%	2	4.55%
1 – 2%	6	13.64%
0 – 1%	14	31.82%
0 – -1%	13	29.55%
-1 – -2%	5	11.36%
-2 – -3%	2	4.55%
-3 – -4%	1	2.27%

Table 8. Periods when ALC moved 15% or more

In this table, we track the price movements in the 20 days after ALC 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

Table 9. Periods when ALC moved 10% or more

In this table, we track the price movements in the 20 days after ALC 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
20200324	13%	5.6	12.9	9.9	14.3	18.4	12.5	18.4
20200316	-10.2%	-.6	-9.9	-.2	6.7	3.9	8.0	11.8

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

Of the 436 trading days from 2019 to 2020, there were 1 days in which ALC was up more than 10%. This table shows the average price changes over the 1 days.

Average Type	Average Price Change
Days after:	1	4	7	10	13	16	19
Avg for Change ≥ 10%	5.6	12.9	9.9	14.3	18.4	12.5	18.4

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

Of the 436 trading days from 2019 to 2020, there were 1 days in which ALC was down more than -10%. This table shows the average price changes over the 1 days.

Average Type	Average Price Change
Days after:	1	4	7	10	13	16	19
Avg for Change ≥ -10%	-.6	-9.9	-.2	6.7	3.9	8.0	11.8

Table 10. Periods when ALC moved 5% or more

In this table, we track the price movements in the 20 days after ALC 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
20200324	13%	5.6	12.9	9.9	14.3	18.4	12.5	18.4
20200330	8.4%	-.1	-1.7	2.8	1.6	.1	1.7	4.6
20200226	7.4%	-2.7	.0	-6.2	-14.2	-24.5	-27.1	-28.7
20200518	6.3%	-.6	.7	1.5	5.2	5.6	1.7	-4.9
20200513	6.2%	-1.0	6.4	7.9	8.6	12.7	13.0	8.8
20200325	5.6%	1.4	6.8	5.1	10.0	8.6	7.0	8.7
20200313	5.3%	-10.2	-13.3	-15.2	-11.7	-6.9	-1.5	.4
20200715	5%	-1.4	1.4	-.1	4.3	2.4	2.8	3.3
20200611	-5.2%	-.7	6.0	4.8	-.4	-1.1	1.5	-1.9
20200320	-6.7%	-7.2	12.4	18.3	16.4	21.8	20.3	18.5
20200312	-6.9%	5.4	-8.9	-20.9	-4.2	.8	-.8	3.8
20200323	-7.1%	13.0	17.7	24.1	31.3	33.8	32.3	33.3
20200316	-10.2%	-.6	-9.9	-.2	6.7	3.9	8.0	11.8

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

Of the 436 trading days from 2019 to 2020, there were 8 days in which ALC was up more than 5%. This table shows the average price changes over the 8 days.

Average Type	Average Price Change
Days after:	1	4	7	10	13	16	19
Avg for Change ≥ 5%	-1.1	1.7	.7	2.3	2.0	1.2	1.3

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

Of the 436 trading days from 2019 to 2020, there were 5 days in which ALC was down more than -5%. 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 ≥ -5%	2.0	3.5	5.2	10.0	11.8	12.3	13.1

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Also see: VIX price movement study.