Statistics of Price Movements of Perrigo Company (PRGO)

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

The statistics are calculated using PRGO's price data across 1,549 trading days from 2015 to 2020.

Table 1. Statistics of PRGO 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 1,549 trading days, 49.5% of the time (766 days), PRGO closed above the previous day's closing price. 46.9% of the time (726 days), it closed below the previous day's closing price. 3.6% of the time (56 days), it did not change.

Also see: VIX price movement study.

PRGO Price Change (%)	Number of Days	% of Total Sessions
18 – 19%	1	0.06%
15 – 16%	1	0.06%
13 – 14%	1	0.06%
12 – 13%	1	0.06%
11 – 12%	1	0.06%
9 – 10%	2	0.13%
8 – 9%	2	0.13%
7 – 8%	4	0.26%
6 – 7%	5	0.32%
5 – 6%	2	0.13%
4 – 5%	10	0.65%
3 – 4%	44	2.84%
2 – 3%	87	5.62%
1 – 2%	237	15.31%
0 – 1%	368	23.77%
0%	56	3.62%
0 – -1%	336	21.71%
-1 – -2%	204	13.18%
-2 – -3%	94	6.07%
-3 – -4%	38	2.45%
-4 – -5%	24	1.55%
-5 – -6%	10	0.65%
-6 – -7%	6	0.39%
-7 – -8%	1	0.06%
-8 – -9%	2	0.13%
-9 – -10%	3	0.19%
-10 – -11%	2	0.13%
-11 – -12%	2	0.13%
-14 – -15%	1	0.06%
-16 – -17%	1	0.06%
-18 – -19%	1	0.06%
-29 – -30%	1	0.06%

Table 2. Statistics of PRGO: 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 PRGO.

47.8% of the time (741 days), PRGO closed above the opening price. 48.2% of the time (746 days), it closed below the opening price. 4.0% of the time (62 days), it closed where it started.

Closing - Open (%)	Number of Days	% of Total Sessions
18 – 19%	1	0.06%
9 – 10%	1	0.06%
8 – 9%	1	0.06%
7 – 8%	1	0.06%
6 – 7%	5	0.32%
5 – 6%	6	0.39%
4 – 5%	11	0.71%
3 – 4%	33	2.13%
2 – 3%	85	5.49%
1 – 2%	232	14.98%
0 – 1%	365	23.56%
0%	62	4.00%
0 – -1%	377	24.34%
-1 – -2%	203	13.11%
-2 – -3%	96	6.20%
-3 – -4%	39	2.52%
-4 – -5%	20	1.29%
-5 – -6%	4	0.26%
-6 – -7%	6	0.39%
-16 – -17%	1	0.06%

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

In the past 1,549 trading days, PRGO opened more than 5% higher than the previous day's closing price 10 times. Of these days, 60.0% (6 days) had closing prices above the opening price, and 40.0% (4 days) had closing prices below the opening price.

Closing - Open (%)	Number of Days	% of Total Sessions
7 – 8%	1	10.00%
6 – 7%	1	10.00%
2 – 3%	1	10.00%
1 – 2%	2	20.00%
0 – 1%	1	10.00%
-2 – -3%	1	10.00%
-3 – -4%	1	10.00%
-4 – -5%	2	20.00%

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

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

Closing - Open (%)	Number of Days	% of Total Sessions
2 – 3%	1	100.00%

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

4 times PRGO opened 3 – 4% higher than the previous day's closing price. Among these days, 50.0% (2 days) closed above the opening price, 50.0% (2 days) closed below the opening price.

Closing - Open (%)	Number of Days	% of Total Sessions
3 – 4%	1	25.00%
0 – 1%	1	25.00%
-1 – -2%	1	25.00%
-2 – -3%	1	25.00%

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

18 times PRGO opened 2 – 3% higher than the previous day's closing price. Among these days, 38.9% (7 days) closed above the opening price, 61.1% (11 days) closed below the opening price.

Closing - Open (%)	Number of Days	% of Total Sessions
6 – 7%	1	5.56%
4 – 5%	1	5.56%
2 – 3%	1	5.56%
1 – 2%	2	11.11%
0 – 1%	2	11.11%
0 – -1%	4	22.22%
-1 – -2%	3	16.67%
-2 – -3%	3	16.67%
-3 – -4%	1	5.56%

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

97 times PRGO opened 1 – 2% higher than the previous day's closing price. Among these days, 49.5% (48 days) closed above the opening price, 49.5% (48 days) closed below the opening price.

Closing - Open (%)	Number of Days	% of Total Sessions
9 – 10%	1	1.03%
6 – 7%	1	1.03%
5 – 6%	2	2.06%
3 – 4%	3	3.09%
2 – 3%	6	6.19%
1 – 2%	13	13.40%
0 – 1%	22	22.68%
0%	1	1.03%
0 – -1%	18	18.56%
-1 – -2%	17	17.53%
-2 – -3%	10	10.31%
-3 – -4%	2	2.06%
-4 – -5%	1	1.03%

Table 8. Periods when PRGO moved 15% or more

In this table, we track the price movements in the 20 days after PRGO 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
20150408	18.3%	1.9	4.5	2.0	3.3	-3.4	-6.0	-3.5
20170810	15.7%	2.1	3.0	1.0	.9	1.1	2.7	1.9
20181108	-16.3%	1.9	.9	-.1	-3.0	.3	-1.0	-.1
20160425	-18%	.2	-2.7	-3.7	-5.7	-10.4	-9.2	-5.7
20181221	-29.2%	-1.4	7.0	4.6	14.3	19.4	23.5	21.2

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

Of the 1,549 trading days from 2015 to 2020, there were 2 days in which PRGO was up more than 15%. This table shows the average price changes over the 2 days.

Average Type	Average Price Change
Days after:	1	4	7	10	13	16	19
Avg for Change ≥ 15%	2.0	3.8	1.5	2.1	-1.2	-1.7	-.8

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

Of the 1,549 trading days from 2015 to 2020, there were 3 days in which PRGO was down more than -15%. This table shows the average price changes over the 3 days.

Average Type	Average Price Change
Days after:	1	4	7	10	13	16	19
Avg for Change ≥ -15%	.2	1.7	.3	1.9	3.1	4.4	5.2

Table 9. Periods when PRGO moved 10% or more

In this table, we track the price movements in the 20 days after PRGO 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
20150408	18.3%	1.9	4.5	2.0	3.3	-3.4	-6.0	-3.5
20170810	15.7%	2.1	3.0	1.0	.9	1.1	2.7	1.9
20200313	13.8%	-1.6	-5.5	-2.3	-.4	-2.5	2.8	9.0
20200114	12.6%	2.8	3.7	4.5	4.6	.2	3.8	5.8
20181226	11.5%	-2.7	-4.8	4.0	8.6	12.3	10.2	10.4
20160218	-10.1%	-.8	-3.2	-3.2	-3.1	-1.0	4.3	2.0
20180809	-10.5%	-.2	-.8	7.8	5.6	6.8	9.3	10.0
20200312	-11.6%	13.8	11.0	4.0	14.5	18.3	9.1	20.1
20170228	-11.7%	.3	-4.3	-5.8	-7.3	-7.0	-8.5	-7.5
20200227	-14.5%	-2.2	6.3	-5.7	-21.5	-4.2	-18.7	-13.6
20181108	-16.3%	1.9	.9	-.1	-3.0	.3	-1.0	-.1
20160425	-18%	.2	-2.7	-3.7	-5.7	-10.4	-9.2	-5.7
20181221	-29.2%	-1.4	7.0	4.6	14.3	19.4	23.5	21.2

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

Of the 1,549 trading days from 2015 to 2020, there were 5 days in which PRGO was up more than 10%. 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 ≥ 10%	.5	.2	1.8	3.4	1.5	2.7	4.7

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

Of the 1,549 trading days from 2015 to 2020, there were 8 days in which PRGO was down more than -10%. 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 ≥ -10%	1.4	1.8	-.3	-.8	2.7	1.1	3.3

Table 10. Periods when PRGO moved 5% or more

In this table, we track the price movements in the 20 days after PRGO 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
20150408	18.3%	1.9	4.5	2.0	3.3	-3.4	-6.0	-3.5
20170810	15.7%	2.1	3.0	1.0	.9	1.1	2.7	1.9
20200313	13.8%	-1.6	-5.5	-2.3	-.4	-2.5	2.8	9.0
20200114	12.6%	2.8	3.7	4.5	4.6	.2	3.8	5.8
20181226	11.5%	-2.7	-4.8	4.0	8.6	12.3	10.2	10.4
20201105	9.4%	-1.1	4.2	8.8	8.0	7.6	6.2	6.1
20160614	9.1%	-9.2	-10.5	-12.0	-19.3	-15.7	-14.1	-13.4
20200317	8.9%	-9.0	-14.8	-6.2	-3.1	-10.6	-1.6	1.5
20171109	8.3%	-.3	-2.5	-3.2	-1.5	-1.1	-1.1	-6.4
20170426	7.6%	1.4	4.4	.5	2.1	2.8	-3.5	.1
20160912	7.3%	-1.7	-2.0	-1.6	.5	-2.1	-1.2	-4.5
20170531	7.2%	2.6	-3.4	-1.8	-.7	.4	2.5	2.5
20200406	7.2%	-1.0	6.1	8.5	6.9	7.2	13.1	10.7
20190509	6.9%	-1.2	-5.8	-5.8	-9.2	-15.1	-20.1	-16.0
20200324	6.9%	-1.0	8.0	-5.3	4.1	11.6	14.2	12.5
20161110	6.7%	.2	-3.1	.2	.2	-3.7	-3.5	-5.8
20200302	6.6%	-1.4	-1.6	-14.8	-15.7	-19.1	-16.4	-14.7
20190104	6.1%	4.0	3.7	6.8	8.6	6.3	7.4	9.8
20200330	5.8%	-1.5	-9.1	.1	3.2	4.2	1.8	5.4
20201110	5.3%	-2.9	1.4	.6	.2	-1.0	-1.1	.5
20170503	-5%	1.1	3.3	3.6	1.0	-1.4	-.7	-6.1
20190530	-5%	-2.5	2.6	1.7	2.2	1.8	3.3	6.0
20150928	-5.1%	1.5	5.3	2.3	5.9	6.6	6.6	-1.3
20200402	-5.1%	3.6	14.1	17.7	18.8	16.1	20.2	26.9
20200908	-5.1%	1.1	3.9	.3	-3.5	-6.2	-4.8	-6.1
20170803	-5.2%	-1.3	-2.8	13.2	13.7	15.1	13.3	13.5
20160422	-5.6%	-18.1	-20.5	-20.4	-23.9	-23.6	-26.9	-24.2
20200805	-5.6%	-2.9	1.9	2.7	3.4	.7	.8	-1.2
20190528	-5.7%	1.6	-4.6	-2.7	-1.5	-3.3	-.6	-1.1
20190430	-5.9%	1.3	5.1	9.8	3.7	3.7	3.4	-1.2
20151113	-6.1%	1.4	5.3	2.1	2.4	.7	.3	1.4
20200401	-6.1%	-5.1	4.4	11.8	14.4	12.7	13.0	19.3
20190808	-6.7%	-.3	-.5	.1	1.6	-3.4	-.6	-.9
20191106	-6.7%	-1.5	-4.4	-2.2	-3.6	-.9	.8	-1.6
20170111	-6.8%	.4	-1.7	-3.6	-6.5	-4.5	.7	-.2
20200311	-6.9%	-11.7	7.8	-8.5	-2.8	6.0	-7.0	2.3
20180227	-7.1%	-.7	1.0	3.7	5.5	2.7	.4	-.1
20200309	-8%	1.2	-5.3	-7.6	-13.5	-4.8	-1.6	-9.3
20201104	-8.9%	9.5	17.5	18.8	16.7	15.6	16.1	17.3
20200318	-9%	-3.1	.1	2.1	-.1	5.4	11.7	15.8
20160615	-9.1%	.4	-1.8	-7.3	-6.8	-7.2	-5.2	-3.3
20160810	-9.5%	-.2	3.1	6.8	2.2	3.5	6.1	7.1
20160218	-10.1%	-.8	-3.2	-3.2	-3.1	-1.0	4.3	2.0
20180809	-10.5%	-.2	-.8	7.8	5.6	6.8	9.3	10.0
20200312	-11.6%	13.8	11.0	4.0	14.5	18.3	9.1	20.1
20170228	-11.7%	.3	-4.3	-5.8	-7.3	-7.0	-8.5	-7.5
20200227	-14.5%	-2.2	6.3	-5.7	-21.5	-4.2	-18.7	-13.6
20181108	-16.3%	1.9	.9	-.1	-3.0	.3	-1.0	-.1
20160425	-18%	.2	-2.7	-3.7	-5.7	-10.4	-9.2	-5.7
20181221	-29.2%	-1.4	7.0	4.6	14.3	19.4	23.5	21.2

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

Of the 1,549 trading days from 2015 to 2020, there were 20 days in which PRGO was up more than 5%. This table shows the average price changes over the 20 days.

Average Type	Average Price Change
Days after:	1	4	7	10	13	16	19
Avg for Change ≥ 5%	-1.0	-1.2	-.8	.1	-1.0	-.2	.6

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

Of the 1,549 trading days from 2015 to 2020, there were 30 days in which PRGO was down more than -5%. This table shows the average price changes over the 30 days.

Average Type	Average Price Change
Days after:	1	4	7	10	13	16	19
Avg for Change ≥ -5%	-.4	1.6	1.4	.8	1.9	1.9	2.6

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.