Statistics of Price Movements of Zillow Group Cl C (Z)

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

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

Table 1. Statistics of Z 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, 50.8% of the time (785 days), Z closed above the previous day's closing price. 45.1% of the time (698 days), it closed below the previous day's closing price. 4.1% of the time (63 days), it did not change.

Also see: VIX price movement study.

Z Price Change (%)	Number of Days	% of Total Sessions
26 – 27%	1	0.06%
22 – 23%	1	0.06%
17 – 18%	1	0.06%
16 – 17%	2	0.13%
14 – 15%	2	0.13%
12 – 13%	2	0.13%
11 – 12%	3	0.19%
9 – 10%	3	0.19%
8 – 9%	5	0.32%
7 – 8%	4	0.26%
6 – 7%	8	0.52%
5 – 6%	28	1.81%
4 – 5%	47	3.04%
3 – 4%	64	4.14%
2 – 3%	149	9.64%
1 – 2%	179	11.58%
0 – 1%	286	18.50%
0%	63	4.08%
0 – -1%	251	16.24%
-1 – -2%	179	11.58%
-2 – -3%	110	7.12%
-3 – -4%	65	4.20%
-4 – -5%	32	2.07%
-5 – -6%	19	1.23%
-6 – -7%	21	1.36%
-7 – -8%	5	0.32%
-8 – -9%	6	0.39%
-9 – -10%	1	0.06%
-11 – -12%	2	0.13%
-12 – -13%	1	0.06%
-14 – -15%	2	0.13%
-15 – -16%	1	0.06%
-21 – -22%	1	0.06%
-26 – -27%	1	0.06%
-66 – -67%	1	0.06%

Table 2. Statistics of Z: 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 Z.

49.3% of the time (762 days), Z closed above the opening price. 46.8% of the time (724 days), it closed below the opening price. 3.9% of the time (61 days), it closed where it started.

Closing - Open (%)	Number of Days	% of Total Sessions
16 – 17%	1	0.06%
14 – 15%	2	0.13%
13 – 14%	1	0.06%
10 – 11%	1	0.06%
9 – 10%	4	0.26%
8 – 9%	3	0.19%
7 – 8%	5	0.32%
6 – 7%	11	0.71%
5 – 6%	17	1.10%
4 – 5%	41	2.65%
3 – 4%	68	4.40%
2 – 3%	131	8.47%
1 – 2%	216	13.96%
0 – 1%	261	16.87%
0%	61	3.94%
0 – -1%	271	17.52%
-1 – -2%	205	13.25%
-2 – -3%	109	7.05%
-3 – -4%	64	4.14%
-4 – -5%	28	1.81%
-5 – -6%	20	1.29%
-6 – -7%	17	1.10%
-7 – -8%	7	0.45%
-8 – -9%	2	0.13%
-10 – -11%	1	0.06%

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

In the past 1,547 trading days, Z opened more than 5% higher than the previous day's closing price 17 times. Of these days, 47.1% (8 days) had closing prices above the opening price, and 52.9% (9 days) had closing prices below the opening price.

Closing - Open (%)	Number of Days	% of Total Sessions
16 – 17%	1	5.88%
13 – 14%	1	5.88%
4 – 5%	1	5.88%
3 – 4%	2	11.76%
1 – 2%	1	5.88%
0 – 1%	2	11.76%
0 – -1%	2	11.76%
-2 – -3%	1	5.88%
-3 – -4%	2	11.76%
-5 – -6%	1	5.88%
-7 – -8%	1	5.88%
-8 – -9%	1	5.88%
-10 – -11%	1	5.88%

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

On 5 days, Z opened 4–5% higher than the previous day's closing price. Of these days, 20.0% (1 days) had closing prices above the opening price, and 80.0% (4 days) had closing prices below the opening price.

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

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

17 times Z opened 3 – 4% higher than the previous day's closing price. Among these days, 41.2% (7 days) closed above the opening price, 58.8% (10 days) closed below the opening price.

Closing - Open (%)	Number of Days	% of Total Sessions
5 – 6%	1	5.88%
4 – 5%	1	5.88%
3 – 4%	1	5.88%
1 – 2%	1	5.88%
0 – 1%	3	17.65%
0 – -1%	2	11.76%
-1 – -2%	2	11.76%
-2 – -3%	4	23.53%
-3 – -4%	1	5.88%
-6 – -7%	1	5.88%

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

31 times Z opened 2 – 3% higher than the previous day's closing price. Among these days, 38.7% (12 days) closed above the opening price, 61.3% (19 days) closed below the opening price.

Closing - Open (%)	Number of Days	% of Total Sessions
9 – 10%	2	6.45%
6 – 7%	1	3.23%
2 – 3%	3	9.68%
1 – 2%	3	9.68%
0 – 1%	3	9.68%
0 – -1%	8	25.81%
-1 – -2%	6	19.35%
-2 – -3%	2	6.45%
-4 – -5%	1	3.23%
-5 – -6%	2	6.45%

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

116 times Z opened 1 – 2% higher than the previous day's closing price. Among these days, 45.7% (53 days) closed above the opening price, 54.3% (63 days) closed below the opening price.

Closing - Open (%)	Number of Days	% of Total Sessions
4 – 5%	1	0.86%
3 – 4%	8	6.90%
2 – 3%	9	7.76%
1 – 2%	20	17.24%
0 – 1%	15	12.93%
0 – -1%	24	20.69%
-1 – -2%	13	11.21%
-2 – -3%	9	7.76%
-3 – -4%	12	10.34%
-4 – -5%	1	0.86%
-5 – -6%	1	0.86%
-6 – -7%	1	0.86%
-7 – -8%	2	1.72%

Table 8. Periods when Z moved 15% or more

In this table, we track the price movements in the 20 days after Z 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
20190222	26.3%	-1.4	-5.6	-10.6	-13.3	-10.9	-14.6	-18.2
20200406	22.4%	1.8	9.5	-2.7	-1.8	3.3	13.6	14.4
20200324	17.9%	8.3	.7	-18.2	2.7	10.3	-1.9	-1.0
20200220	16.8%	2.2	-10.3	-14.5	-19.0	-28.7	-42.9	-60.7
20201109	16.7%	-3.6	1.8	-1.8	9.6	2.9	2.9	2.7
20190808	-15.2%	-6.2	-17.4	-14.5	-15.9	-22.2	-18.3	-23.5
20200316	-21.1%	-1.9	-5.2	39.1	29.3	5.1	31.8	41.7
20181107	-26.9%	-1.9	1.6	-3.6	-2.7	9.7	22.7	19.5
20150817	-66.1%	5.1	1.5	.8	-.6	2.9	1.8	4.3

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

Of the 1,547 trading days from 2015 to 2020, there were 5 days in which Z was up 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%	1.5	-.8	-9.6	-4.4	-4.6	-8.6	-12.6

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

Of the 1,547 trading days from 2015 to 2020, there were 4 days in which Z was down more than -15%. This table shows the average price changes over the 4 days.

Average Type	Average Price Change
Days after:	1	4	7	10	13	16	19
Avg for Change ≥ -15%	-1.2	-4.9	5.4	2.5	-1.1	9.5	10.5

Table 9. Periods when Z moved 10% or more

In this table, we track the price movements in the 20 days after Z 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
20190222	26.3%	-1.4	-5.6	-10.6	-13.3	-10.9	-14.6	-18.2
20200406	22.4%	1.8	9.5	-2.7	-1.8	3.3	13.6	14.4
20200324	17.9%	8.3	.7	-18.2	2.7	10.3	-1.9	-1.0
20200220	16.8%	2.2	-10.3	-14.5	-19.0	-28.7	-42.9	-60.7
20201109	16.7%	-3.6	1.8	-1.8	9.6	2.9	2.9	2.7
20150218	14.9%	-3.3	-6.2	-8.6	-10.0	-10.6	-13.9	-15.7
20200323	14.8%	17.9	21.5	.7	18.9	30.1	23.9	16.4
20191108	12.2%	2.9	3.7	.6	9.5	3.8	6.2	9.3
20160504	12%	-4.8	-3.2	-1.5	2.5	-1.1	.9	2.1
20181126	11.9%	1.8	11.1	9.0	9.8	-.2	-6.3	-14.2
20200507	11.8%	9.1	-4.2	2.2	11.5	21.2	19.4	27.8
20200807	11.6%	-.5	-6.7	3.2	4.3	5.1	7.5	7.1
20200318	-11%	5.2	47.2	51.7	25.7	48.4	62.5	54.7
20200512	-11.7%	-5.5	.8	10.0	19.6	17.8	26.1	26.5
20200401	-12.7%	-4.2	20.2	29.2	14.9	16.0	21.9	34.1
20200312	-14.3%	2.3	-29.6	-12.1	14.8	1.4	-14.7	10.3
20180807	-14.7%	2.8	-4.5	-5.9	-2.2	-5.2	-3.2	-1.8
20190808	-15.2%	-6.2	-17.4	-14.5	-15.9	-22.2	-18.3	-23.5
20200316	-21.1%	-1.9	-5.2	39.1	29.3	5.1	31.8	41.7
20181107	-26.9%	-1.9	1.6	-3.6	-2.7	9.7	22.7	19.5
20150817	-66.1%	5.1	1.5	.8	-.6	2.9	1.8	4.3

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

Of the 1,547 trading days from 2015 to 2020, there were 12 days in which Z was up more than 10%. This table shows the average price changes over the 12 days.

Average Type	Average Price Change
Days after:	1	4	7	10	13	16	19
Avg for Change ≥ 10%	2.5	1.0	-3.5	2.1	2.1	-.4	-2.5

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

Of the 1,547 trading days from 2015 to 2020, there were 9 days in which Z was down more than -10%. This table shows the average price changes over the 9 days.

Average Type	Average Price Change
Days after:	1	4	7	10	13	16	19
Avg for Change ≥ -10%	-.5	1.6	10.5	9.2	8.2	14.5	18.4

Table 10. Periods when Z moved 5% or more

In this table, we track the price movements in the 20 days after Z 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
20190222	26.3%	-1.4	-5.6	-10.6	-13.3	-10.9	-14.6	-18.2
20200406	22.4%	1.8	9.5	-2.7	-1.8	3.3	13.6	14.4
20200324	17.9%	8.3	.7	-18.2	2.7	10.3	-1.9	-1.0
20200220	16.8%	2.2	-10.3	-14.5	-19.0	-28.7	-42.9	-60.7
20201109	16.7%	-3.6	1.8	-1.8	9.6	2.9	2.9	2.7
20150218	14.9%	-3.3	-6.2	-8.6	-10.0	-10.6	-13.9	-15.7
20200323	14.8%	17.9	21.5	.7	18.9	30.1	23.9	16.4
20191108	12.2%	2.9	3.7	.6	9.5	3.8	6.2	9.3
20160504	12%	-4.8	-3.2	-1.5	2.5	-1.1	.9	2.1
20181126	11.9%	1.8	11.1	9.0	9.8	-.2	-6.3	-14.2
20200507	11.8%	9.1	-4.2	2.2	11.5	21.2	19.4	27.8
20200807	11.6%	-.5	-6.7	3.2	4.3	5.1	7.5	7.1
20150203	9.5%	-1.1	-2.0	.2	4.4	20.0	8.1	9.5
20170505	9.2%	-.9	-1.7	1.0	-6.7	-1.0	-1.4	1.7
20200508	9%	5.3	-10.4	-3.5	6.7	11.5	9.9	16.0
20200417	8.9%	.4	5.5	16.0	16.9	19.5	53.5	30.6
20181226	8.8%	4.2	2.5	-.1	5.5	8.5	8.9	2.0
20200325	8.3%	2.2	-9.7	-24.0	-1.8	-3.6	-16.4	-9.3
20150123	8.2%	-1.3	-7.2	-1.3	-5.0	-4.0	.5	14.6
20200429	8.2%	-3.6	-4.4	16.1	2.0	8.8	18.7	29.0
20201111	7.6%	-.6	-2.6	3.3	-.9	-.2	-.7	6.2
20161206	7.5%	.5	-3.0	1.7	3.8	-.5	-.6	-2.5
20160211	7%	-.9	7.8	11.3	16.9	19.4	29.5	24.9
20201119	7%
20150511	6.9%	-.7	-3.6	-4.7	-5.5	-5.7	-5.8	-8.7
20200422	6.9%	-1.0	8.9	9.7	12.2	44.0	22.6	31.9
20160122	6.5%	-2.1	-3.4	-11.2	-16.2	-16.8	-11.7	-3.1
20160422	6.5%	.0	-3.5	.8	7.2	9.6	14.1	10.0
20161102	6.3%	1.0	1.1	1.0	.8	3.4	5.2	2.6
20200424	6.1%	5.7	8.0	7.1	30.1	14.3	21.9	33.1
20181016	6%	.5	-3.1	.8	-5.0	.7	-27.4	-24.9
20181025	6%	-8.1	-3.3	-2.9	-29.4	-26.9	-30.6	-29.9
20181030	5.9%	2.5	3.0	-25.1	-22.4	-26.4	-25.7	-16.2
20150915	5.8%	-.7	-1.0	-1.4	-.5	-3.9	8.5	15.7
20151009	5.8%	-4.3	-6.9	-6.8	-10.3	-15.6	-14.9	-22.9
20190910	5.8%	.5	-1.1	-5.9	-10.1	-9.6	-11.3	-6.7
20201001	5.8%	.6	-1.9	-6.1	-5.3	-8.5	-10.6	-16.6
20160216	5.7%	2.9	6.2	11.5	14.0	23.6	19.2	21.5
20160607	5.7%	1.3	1.0	3.1	8.1	7.8	9.7	10.9
20180507	5.7%	-1.4	-1.8	-5.2	-7.2	.2	-2.1	5.6
20200520	5.7%	.2	8.9	7.3	14.8	15.2	4.2	9.3
20200427	5.6%	-2.0	-1.3	1.0	29.6	10.3	18.8	31.4
20200615	5.6%	-1.5	3.8	-1.2	-4.8	-.1	4.5	3.8
20190604	5.4%	4.4	3.9	3.7	4.7	2.1	-1.0	7.3
20151008	5.3%	5.9	.9	-3.0	-5.2	-9.9	-12.4	-12.5
20151006	5.2%	5.0	12.1	9.1	9.1	5.0	-1.1	-.3
20180523	5.2%	2.6	.4	8.2	14.0	14.8	19.3	15.6
20180530	5.2%	1.2	5.6	8.3	11.1	12.4	7.3	5.5
20190806	5.2%	.4	-25.2	-30.5	-29.2	-30.4	-33.5	-30.5
20200319	5.2%	3.3	51.6	40.8	14.5	43.6	54.4	37.2
20200511	5.2%	-11.7	-12.5	-3.1	1.3	2.9	6.5	6.4
20200716	5.2%	3.3	8.4	7.6	12.4	9.7	28.3	22.2
20160129	5.1%	-6.1	-10.1	-21.0	-13.1	-5.5	-2.4	2.4
20200204	5.1%	.3	3.0	5.6	6.7	32.7	16.5	11.1
20200730	5.1%	-2.2	1.0	13.5	6.5	17.8	19.0	20.0
20150818	5%	2.7	-6.5	-3.5	-6.3	-3.8	-3.8	.2
20151007	5%	5.4	5.5	1.5	-.3	-1.9	-8.1	-1.6
20180214	5%	.4	1.0	-.6	1.5	9.6	14.5	21.9
20181128	5%	4.7	2.0	2.7	-.3	-11.8	-17.2	-19.4
20190510	5%	-.4	8.7	15.6	16.3	18.1	16.9	30.9
20160519	-5%	1.7	4.7	4.6	6.6	17.3	17.9	19.9
20200811	-5%	.9	5.9	10.0	10.0	15.9	18.5	7.1
20160627	-5.1%	2.8	8.4	6.9	11.2	13.0	14.3	15.9
20190320	-5.2%	1.7	-.5	-2.5	4.4	5.5	4.2	7.2
20191008	-5.2%	2.0	4.4	11.2	14.2	19.1	15.0	17.7
20160208	-5.3%	1.2	11.2	21.0	24.9	31.2	34.0	45.4
20190814	-5.3%	-1.1	.8	-.9	-5.3	-1.1	-8.1	-6.2
20200413	-5.3%	.7	-5.5	.7	11.9	14.4	13.4	37.8
20160411	-5.4%	3.7	9.6	16.5	24.7	20.3	25.7	33.6
20191119	-5.4%	2.9	8.2	3.2	6.3	8.7	13.1	13.8
20200513	-5.4%	2.0	9.8	21.4	26.9	25.1	32.0	31.5
20160120	-5.5%	-3.0	3.0	5.0	-9.6	-18.0	-8.0	-3.6
20200611	-5.5%	.9	7.9	7.7	4.9	2.3	6.5	13.0
20160404	-5.7%	-4.6	-4.5	-2.1	-2.1	5.6	12.5	8.8
20161201	-5.7%	.1	11.0	7.2	12.4	14.7	10.0	9.8
20150105	-5.8%	-.7	5.3	6.8	-1.3	.3	5.0	-.7
20160104	-5.8%	-.5	-.0	-3.0	-5.8	-14.3	-9.0	-7.3
20150820	-5.9%	.0	-.7	-2.0	1.4	.3	2.8	9.1
20200626	-5.9%	2.8	7.9	12.8	12.0	6.3	19.2	17.8
20160201	-6%	-6.9	-12.1	-12.8	-7.5	1.6	7.9	9.1
20181119	-6%	3.9	8.2	29.4	36.3	36.3	32.6	19.2
20200624	-6%	-.4	-2.8	1.1	7.3	-1.9	4.9	9.6
20150803	-6.1%	-3.0	-2.6	-2.6	-67.6	-67.1	-67.8	-67.5
20190809	-6.1%	-6.2	-12.9	-11.2	-12.7	-16.6	-12.9	-19.1
20190812	-6.1%	-.9	-3.1	-4.2	-9.4	-8.6	-11.1	-15.2
20151104	-6.2%	-6.7	-11.8	-15.8	-8.6	-11.5	-9.8	-12.8
20181213	-6.2%	-1.4	-7.8	-13.8	-2.3	-3.8	-6.2	-1.0
20201124	-6.2%
20170208	-6.3%	-1.5	5.2	2.5	4.2	1.2	.3	1.9
20180906	-6.3%	.6	6.5	-.9	.1	-2.0	-.9	-4.5
20190625	-6.4%	2.1	10.6	12.2	15.8	16.6	11.9	10.2
20180413	-6.5%	-1.0	-6.3	-4.8	-5.7	1.5	11.6	10.4
20200713	-6.5%	-.6	10.4	15.8	15.0	20.1	17.3	37.0
20200415	-6.6%	-7.6	.2	12.7	26.3	17.9	34.5	36.3
20151105	-6.7%	-1.2	-5.5	-8.0	-2.2	-3.8	-4.8	-4.4
20180727	-6.7%	-3.6	-1.2	-14.2	-15.2	-19.2	-17.0	-17.8
20181114	-6.7%	-1.3	-.6	3.4	23.7	30.3	30.3	26.8
20170517	-6.8%	.4	3.0	4.8	5.2	8.1	10.0	9.4
20160202	-6.9%	-1.5	-10.7	.3	5.1	13.3	12.7	20.5
20200327	-6.9%	-2.3	-20.6	-.4	7.1	-4.8	-3.9	1.1
20170810	-7%	1.2	.0	-4.6	-5.0	-2.6	-2.0	-4.2
20160309	-7.5%	.4	-2.8	-.5	-.4	-.1	5.7	-6.1
20190122	-7.5%	-1.9	4.0	11.6	10.4	12.8	13.9	18.3
20200416	-7.6%	8.9	16.1	28.9	31.8	30.7	58.8	39.5
20150710	-7.7%	3.0	6.4	5.1	1.1	1.7	-2.8	-3.4
20181026	-8%	-3.2	9.5	7.2	-21.0	-25.8	-29.1	-23.8
20160205	-8.1%	-5.4	6.2	11.3	20.0	19.4	27.7	38.1
20200224	-8.1%	-3.2	-6.5	-9.1	-24.7	-40.5	-52.9	-54.4
20150115	-8.3%	.9	.2	9.4	2.9	9.4	5.4	6.4
20200311	-8.5%	-14.4	-32.2	-34.5	-3.9	-10.7	-27.4	-8.9
20200309	-8.8%	.9	-19.2	-44.4	-30.6	-9.3	-19.9	-32.6
20170809	-9%	-7.1	-6.3	-11.4	-12.1	-12.3	-9.1	-10.4
20200318	-11%	5.2	47.2	51.7	25.7	48.4	62.5	54.7
20200512	-11.7%	-5.5	.8	10.0	19.6	17.8	26.1	26.5
20200401	-12.7%	-4.2	20.2	29.2	14.9	16.0	21.9	34.1
20200312	-14.3%	2.3	-29.6	-12.1	14.8	1.4	-14.7	10.3
20180807	-14.7%	2.8	-4.5	-5.9	-2.2	-5.2	-3.2	-1.8
20190808	-15.2%	-6.2	-17.4	-14.5	-15.9	-22.2	-18.3	-23.5
20200316	-21.1%	-1.9	-5.2	39.1	29.3	5.1	31.8	41.7
20181107	-26.9%	-1.9	1.6	-3.6	-2.7	9.7	22.7	19.5
20150817	-66.1%	5.1	1.5	.8	-.6	2.9	1.8	4.3

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

Of the 1,547 trading days from 2015 to 2020, there were 60 days in which Z was up more than 5%. This table shows the average price changes over the 60 days.

Average Type	Average Price Change
Days after:	1	4	7	10	13	16	19
Avg for Change ≥ 5%	.8	.7	.1	1.8	3.8	3.5	4.3

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

Of the 1,547 trading days from 2015 to 2020, there were 61 days in which Z was down more than -5%. This table shows the average price changes over the 61 days.

Average Type	Average Price Change
Days after:	1	4	7	10	13	16	19
Avg for Change ≥ -5%	-.8	.4	3.0	3.6	3.9	5.9	7.3

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.