Largest Positive One-Day Changes for CB

How does CB 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 CB stock, the average move was +3.5% with the single largest daily move of +4.7% occurring on 16-May-2024. The following day, CB stock price averaged 0.0% gains, with up moves more frequent than down moves. The stock was up 58% of the time in that period one day after these significant moves. Earnings dates have been excluded from this analysis.

Catalysts

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

1 Week After

The following week, CB stock price averaged 0.0% gains, with up moves and down moves occurring equally across 12 observations.

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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
11-Dec-2025 [Stock +3.2%]	Headlines AIG gains on report Chubb made informal takeover approach (10-Dec-2025, 12:00 AM Seeking Alpha News) AIG gains on report Chubb made informal takeover approach (update) (10-Dec-2025, 12:00 AM Seeking Alpha News) Chubb deal for AIG `very unlikely,' analyst says (11-Dec-2025, 12:00 AM Seeking Alpha News) Chubb deal for AIG ;very unlikely,' analyst says (11-Dec-2025, 12:00 AM Seeking Alpha News) Chubb deal for AIG 'very unlikely,' analyst says (11-Dec-2025, 12:00 AM Seeking Alpha News) Least shorted S&P 500 stocks in November (11-Dec-2025, 12:00 AM Seeking Alpha News)						+3.2%
15-May-2025 [Stock +3.8%]	Press Release Chubb Limited Shareholders Approve 32nd Consecutive Annual Dividend Increase; Chubb Limited Board Declares Record Date for First Dividend Installment and Authorizes New Share Repurchase Program (15-May-2025, 11:15 AM PRNewswire) Headlines Bridgewater Associates adds new Netflix, UAL stakes, exits 3M, Amgen, among other Q1 moves (14-May-2025, 12:00 AM Seeking Alpha News) Chubb raises dividend by 6.6% to $0.97 (15-May-2025, 12:00 AM Seeking Alpha News) Most and least shorted S&P 500 financial stocks in April (15-May-2025, 12:00 AM Seeking Alpha News)						+3.8%
22-Apr-2025 [Stock +3.8%]	Day Before EarningsCB released earnings 22-Apr-2025 AMCLarge Market GainSPY had a large gain on the day of +2.6%						+3.8%
9-Apr-2025 [Stock +3.5%]	Large Market GainSPY had a large gain on the day of +10.5%						+3.5%
27-Feb-2025 [Stock +2.9%]	Press Releases Chubb Announces Leadership Changes in Europe, Middle East and Africa and North America (26-Feb-2025, 9:00 AM PRNewswire) Chubb Limited Board Will Recommend 32nd Consecutive Annual Dividend Increase to Shareholders at the 2025 Annual General Meeting; Declares Quarterly Dividend (27-Feb-2025, 7:20 AM PRNewswire) Westchester, a Chubb Company, Appoints Alex Faynberg Head of Healthy Paws Pet Insurance (27-Feb-2025, 10:44 AM PRNewswire) Headline Chubb declares $0.91 dividend (27-Feb-2025, 12:00 AM Seeking Alpha News)						+2.9%
27-Jan-2025 [Stock +3.7%]	Press Release Chubb Announces Key Leadership Appointments in Overseas General Insurance (27-Jan-2025, 8:30 AM PRNewswire) Headlines Earnings week ahead: TSLA, META, AAPL, MSFT, INTC, MA, XOM, LUV and more (26-Jan-2025, 12:00 AM Seeking Alpha News) Chubb Q4 2024 Earnings Preview (27-Jan-2025, 12:00 AM Seeking Alpha News)						+3.7%
17-Oct-2024 [Stock +3.0%]	Headlines Verisk estimates Milton insured losses at up to $50B, exceeding Helen's tally (16-Oct-2024, 12:00 AM Seeking Alpha News) Hurricane Milton seen costing insurers as much as $50B - report (16-Oct-2024, 12:00 AM Seeking Alpha News) Hurricane Milton seen costing insurers as much as $50B: Verisk (16-Oct-2024, 12:00 AM Seeking Alpha News)						+3.0%
26-Jul-2024 [Stock +3.2%]							+3.2%
17-May-2024 [Stock +3.5%]	Press Release Chubb Limited Shareholders Approve 31st Consecutive Annual Dividend Increase; Chubb Limited Board Declares Record Date for First Dividend Installment (16-May-2024, 4:15 PM PRNewswire)						+3.5%
16-May-2024 [Stock +4.7%]	Press Release Chubb Limited Shareholders Approve 31st Consecutive Annual Dividend Increase; Chubb Limited Board Declares Record Date for First Dividend Installment (16-May-2024, 4:15 PM PRNewswire)						+4.7%
19-Jan-2024 [Stock +3.2%]							+3.2%
20-Jul-2023 [Stock +3.2%]							+3.2%
Simple 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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