Largest Positive One-Day Changes for SPSC

How does SPSC usually behave after a large single-day up move in the stock price?

Using the 12 largest single-day up moves over the last 3 years in SPSC stock, the average move was +6.4% with the single largest daily move of +11.7% occurring on 9-Apr-2025. The following day, SPSC stock price averaged -0.9% losses, with down moves exceeding up moves. The stock was down 67% of the time in that period one day after these significant moves. Earnings dates have been excluded from this analysis.

Catalysts

1 of the moves coincided with a company-issued press release.

1 Week After

The following week, SPSC stock price averaged -0.3% losses, with down moves exceeding up moves across 12 observations. The stock was down 58% of the time in that period one week following these significant moves.

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Stock Price Performance - 12 Largest Positive One-Day Changes
		Before Event Date (Not Including Day of Selected Event)					Day of Event					After Event Date (Not Including Day of Selected Event)					Custom Range▾
Date	Note	2 Weeks	1 Week	3 Days	2 Days	1 Day	Day-Of Move	Opening Gap	% Open-to-High	% Open-to-Low	Drift Open-to-Close	1 Day	2 Days	3 Days	1 Week	2 Weeks	2 Days Before to 2 Days After
15-Apr-2026 [Stock +5.3%]							+5.3%
26-Feb-2026 [Stock +5.7%]	Press Release SPS Commerce to Present at the Morgan Stanley Technology, Media & Telecom Conference (25-Feb-2026, 4:10 PM Globe Newswire) Headline Lowest Quant ranked mid-cap stocks with positive EPS surprises (26-Feb-2026, 12:00 AM Seeking Alpha News)						+5.7%
13-Aug-2025 [Stock +6.3%]							+6.3%
14-Jul-2025 [Stock +6.9%]							+6.9%
12-May-2025 [Stock +5.6%]	Large Market GainSPY had a large gain on the day of +3.3%						+5.6%
24-Apr-2025 [Stock +4.9%]	Day Before EarningsSPSC released earnings 24-Apr-2025 AMCLarge Market GainSPY had a large gain on the day of +2.1%						+4.9%
9-Apr-2025 [Stock +11.7%]	Large Market GainSPY had a large gain on the day of +10.5%						+11.7%
14-Mar-2025 [Stock +5.2%]	Large Market GainSPY had a large gain on the day of +2.1%						+5.2%
6-Nov-2024 [Stock +7.2%]	Large Market GainSPY had a large gain on the day of +2.5%						+7.2%
8-Aug-2024 [Stock +5.0%]	Large Market GainSPY had a large gain on the day of +2.3%						+5.0%
14-Nov-2023 [Stock +8.5%]	Large Market GainSPY had a large gain on the day of +1.9%						+8.5%
6-Oct-2023 [Stock +4.7%]							+4.7%
Simple Average Returns - 12 Largest Positive One-Day Changes
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Absolute Average Returns - 12 Largest Positive One-Day Changes
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Median, Minimum, and Maximum Returns - 12 Largest Positive One-Day Changes
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