Winchester Bancorp, Inc./MD/(WSBK)Stock Analysis
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Limited institutional coverage
Quality rankings require at least 50 unique 13-F institutional holders to ensure peer comparisons are meaningful. Only 19 institutional filers currently hold this stock.
Financial data, filings, and institutional holdings below are still tracked in full — only the proprietary quality composite is unavailable for this name.
WSBK Stock Analysis & AI Quality Score
AI stock analysis and institutional research for Winchester Bancorp, Inc./MD/ (WSBK), a Financials sector company. WSBK is not currently included in 13F Pro's AI-ranked quality universe — quality rankings require at least 50 unique 13-f institutional holders to ensure peer comparisons are meaningful. only 19 institutional filers currently hold this stock. Based on the latest XBRL financial filings (Q3 2026), Winchester Bancorp, Inc./MD/ reports quarterly revenue of $6.7M, net income of $1.1M, an operating margin of 22.4%. Top institutional holders of WSBK by reported 13-F value include MANGROVE PARTNERS IM,, VANGUARD CAPITAL MANAGEMENT, Northstar Financial Companies,, based on the most recent SEC filings. WSBK trades on the Nasdaq exchange and files with the SEC under CIK 2047235. 13F Pro's AI research platform runs 10 specialized AI analysts — value, growth, momentum, macro, and activist specialists — that debate WSBK daily and publish AI-generated analysis with cited SEC sources. The platform aggregates historical XBRL financial facts, 10-Q and 10-K filings, insider Form 4 transactions, and institutional 13-F holdings for Winchester Bancorp, Inc./MD/ directly from SEC EDGAR.
Revenue
Q3 2026
$6.7M
Net Income
Q3 2026
$1.1M
Free Cash Flow
Q3 2026
$1.4M
Operating Margin
Q3 2026
22.4%
ROIC
Q3 2026
1.3%
Revenue & Net Income
Earnings Per Share
Key Financials Over Time
Export Financial Table · Pro+Revenue
Net Income
-211.2% YoYEPS (Diluted)
Total Assets
+11.3% YoYOp. Cash Flow
+967.1% YoY| Metric | FY 2025 | FY 2024 |
|---|---|---|
| Revenue | $0.00 | $0.00 |
| Net Income | $-874.0K -211.2% | $786.0K |
| EPS (Diluted) | $-0.09 | — |
| Total Assets | $949.4M +11.3% | $853.0M |
| Operating Cash Flow | $2.5M +967.1% | $231.0K |
AI Insight: WSBK Financial Trends
Equity capital has grown 49% from Q4 2024 to Q1 2026 while operating cash flow remains modest and net income hovers near breakeven.
• Equity increased from $80M (Q4 2024) to $119M (Q1 2026), a 49% expansion over six quarters.
• Operating cash flow averaged $1–2M per quarter; net income oscillated between $-1M and $1M with no sustained profitability.
⚠ Net income volatility (Q2 2025 loss of $1M) and absence of consistent earnings growth despite capital base expansion.
⚠ Operating cash flow remains flat despite equity growth, signaling weak cash generation relative to balance sheet size.
AI Insight: WSBK Ratio Trends
Winchester Bancorp's profitability metrics have recovered sharply from a Q2 2025 loss, with ROE and ROIC reaching multi-quarter highs in Q1 2026.
• ROE improved from -3.2% in Q2 2025 to 3.8% in Q1 2026; ROIC rose from -5.1% to 5.0% over the same period.
• ROA consistently positive at 0.4% in Q3 and Q4 2025 and Q1 2026, after Q2 2025 dip to -0.4%.
⚠ Q2 2025 produced negative ROE (-3.2%), ROA (-0.4%), and ROIC (-5.1%) — extent and cause of that loss remains unclear from available data.
⚠ Absolute ROE and ROA remain low at 3.8% and 0.4% in Q1 2026; sustainability of recovery after volatile 2025 is unproven.
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Available Research
13F Pro tracks comprehensive data for Winchester Bancorp, Inc./MD/ including:
Top Institutional Holders of WSBK
MANGROVE PARTNERS IM, LLC
$2.4M186,201 shVANGUARD CAPITAL MANAGEMENT LLC
$2.3M181,513 shNorthstar Financial Companies, Inc.
$889.0K70,000 shIntegrated Wealth Concepts LLC
$723.9K57,000 shOppenheimer & Close, LLC
$635.0K50,000 shRENAISSANCE TECHNOLOGIES LLC
$393.7K31,000 shVANGUARD FIDUCIARY TRUST CO
$286.5K22,562 shALLIANCEBERNSTEIN L.P.
$257.7K24,656 shRAYMOND JAMES FINANCIAL INC
$254.0K20,000 shSteward Partners Investment Advisory, LLC
$242.9K19,127 sh
| Fund | Value | Shares |
|---|---|---|
| MANGROVE PARTNERS IM, LLC | $2.4M | 186,201 |
| VANGUARD CAPITAL MANAGEMENT LLC | $2.3M | 181,513 |
| Northstar Financial Companies, Inc. | $889.0K | 70,000 |
| Integrated Wealth Concepts LLC | $723.9K | 57,000 |
| Oppenheimer & Close, LLC | $635.0K | 50,000 |
| RENAISSANCE TECHNOLOGIES LLC | $393.7K | 31,000 |
| VANGUARD FIDUCIARY TRUST CO | $286.5K | 22,562 |
| ALLIANCEBERNSTEIN L.P. | $257.7K | 24,656 |
| RAYMOND JAMES FINANCIAL INC | $254.0K | 20,000 |
| Steward Partners Investment Advisory, LLC | $242.9K | 19,127 |
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Popular Research
Is WSBK a good stock to buy?
13F Pro's AI-powered analysis of Winchester Bancorp, Inc./MD/ (WSBK) draws on SEC EDGAR-sourced fundamentals, institutional 13F holdings, and insider Form 4 transactions in the Financials sector (listed on Nasdaq). The 32-signal AI Quality Score, current rank, and full bull/bear verdict for WSBK are available on the WSBK stock profile dashboard — with the same data, AI insights, ratios, and institutional activity refreshed after every 10-K, 10-Q, 13F, and Form 4 filing.
Which hedge funds own WSBK?
Institutional investors are required to disclose their holdings quarterly via SEC Form 13F. 13F Pro aggregates these filings to show which hedge funds, mutual funds, and asset managers are buying or selling WSBK. Combined with insider transaction data from Form 4 filings and AI-powered analysis from 10 specialized research agents, 13F Pro provides a comprehensive view of Winchester Bancorp, Inc./MD/'s investment landscape.