Nasdaq · WSBK · stock

Winchester Bancorp, Inc./MD/ (WSBK) stock price history

Every Nasdaq trading session of Winchester Bancorp, Inc./MD/ from May 2, 2025 to Sep 28, 2026: 353 daily bars, adjusted for splits and dividends, with minute bars from Jul 13, 2026 forward. The full series is served by the API: a free key covers the last year, paid plans the whole history and minute bars.

WSBK adjusted close, 2025 to 2026

WSBKWinchester Bancorp, Inc./MD/
$12.71+33.0% over one year
2026
$13.27
All time high, 2026
$13.39
52 week high, $9.46 low
353
Daily sessions since 2025

Last updated Sep 28, 2026, the last stored session. Refreshes after each trading day. Full 2025 to 2026 series and minute bars.

WSBK key facts

  • Winchester Bancorp, Inc./MD/ (WSBK) closed at $12.71 on Sep 28, 2026 on Nasdaq.
  • WSBK's all time high close is $13.27, set on Feb 17, 2026; its all time low close is $8.76 on Jun 13, 2025.
  • WSBK's 52 week range is $9.46 to $13.39.
  • WSBK returned +33.0% over the year to Sep 28, 2026.
  • Since May 2, 2025 WSBK returned +37%, +24.9% a year compounded.
  • WSBK's deepest drawdown was -9.7% from May 5, 2025 to Jun 13, 2025.
  • DataCedar holds 353 daily sessions of WSBK history from May 2, 2025 and minute bars from Jul 13, 2026, adjusted for splits and dividends, served by the API under a key.

WSBK price chart, 2025 to 2026

WSBK adjusted close, May 2, 2025 to Sep 28, 2026$8.76$10.26$11.76$13.2720252026
Adjusted daily close. 260 sampled points across the full history; the API serves every session.

WSBK returns

Price return from the last close on or before the window start to Sep 28, 2026, on adjusted closes.

PeriodReturn
1 month-2.1%
3 months-3.3%
6 months-1.5%
Year to date+23.4%
1 year+33.0%
3 yearsn/a
5 yearsn/a
10 yearsn/a
Since May 2, 2025+36.7%
Compound annual growth, 1.4 years+24.9%

WSBK records

Measured on the stored closes; every figure is reproducible from the API series.

All time high close
$13.27 on Feb 17, 2026
All time low close
$8.76 on Jun 13, 2025
52 week high
$13.39 on Feb 18, 2026
52 week low
$9.46 on Oct 20, 2025
Deepest drawdown
-9.7% from May 5, 2025 to Jun 13, 2025, recovered Oct 3, 2025
Best single session
+5.2% on Mar 23, 2026
Worst single session
-5.0% on Mar 20, 2026
Volatility, 1 year annualised
16.2%
Sessions closing higher, 1 year
46%

WSBK price history by year

Open is the first session's open, high and low span the year, close is the last session's close, and the return is close over the previous year's close. 2025 starts on May 2, 2025; 2026 runs to Sep 28, 2026.

YearOpenHighLowCloseReturnVolumeSessions
2026$10.37$13.39$10.36$12.71+21.6%1.5M185
2025$10.10$10.46$8.76$10.45n/a3M168

WSBK monthly closes, last 12 months

MonthMonth end closeChange
September 2026$12.71-1.9%
August 2026$12.96-0.3%
July 2026$13.00-1.1%
June 2026$13.14+3.5%
May 2026$12.70-0.7%
April 2026$12.79+0.7%
March 2026$12.70-3.1%
February 2026$13.10+18.9%
January 2026$11.02+5.5%
December 2025$10.45+8.7%
November 2025$9.61+0.1%
October 2025$9.60+0.5%

About the WSBK data

Daily bars. 353 sessions from May 2, 2025 to Sep 28, 2026, one row per Nasdaq trading day with open, high, low, close and volume. Prices are adjusted for splits and cash dividends so the series is comparable across its whole length; the API also serves the raw, split only and dividend only views.

Minute bars. Stored from Jul 13, 2026 forward, most recent session Sep 28, 2026. Minute history is captured from the day collection began and is never backfilled, so this start date is exact. Five minute, fifteen minute and hourly bars are derived from these minutes.

Time and currency. Session dates are Nasdaq trading days; minute timestamps are UTC. Prices are in USD. Volume is shares traded on the session.

Get the data. The REST endpoint returns the daily series as JSON with pagination; a free key serves the last year, Quant and above the full history back to May 2, 2025, and minute bars come with the paid windows. It takes timeframe (1Min, 5Min, 15Min, 1Hour, 1Day), adjustment, start and end. See the bars endpoint and authentication, and pricing for the plan windows.

curl "https://api.datacedar.com/v3/stocks/WSBK/bars?timeframe=1Day&adjustment=all&limit=50000" \
  -H "X-API-Key: YOUR_KEY"

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Common questions

WSBK share price history

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