Whale Tracker

LEAN BULLISH

Net positive whale activity for MSFT. Smart money shows interest, but signals are mixed. Insiders are net sellers (66,420 shares sold vs 17,532 bought) — management reducing exposure. Strong institutional ownership at 78.3%, but 1 of 10 top holders are distributing.

Action Plan

Consider building a position on pullbacks
Set stop-loss below key support level
Re-evaluate if insider selling accelerates

📈 Options Flow 期权异动

Unusual options volume vs open interest. High volume/OI ratio signals whale positioning. Put/Call ratio indicates directional bias.

PUT / CALL RATIO

0 (Bullish)1.02.0+ (Bearish)

0.38

BULLISH

CALL VOLUME

154,312

PUT VOLUME

58,623

TOTAL VOLUME

212,935

UNUSUAL STRIKES

Unusual Strikes — Vol/OI > 3x (7C / 3P)

TypeStrikeExpiryVolOIRatio

CALL$3922026-05-15122430.5x

CALL$4182026-05-20137527.4x

CALL$3982026-05-2275325.0x

CALL$3852026-05-2046223.0x

CALL$4202026-05-1111,27755920.2x

PUT$3852026-05-20153819.1x

PUT$3722026-05-1571417.8x

PUT$3752026-05-18103617.2x

CALL$4182026-05-117,39253113.9x

CALL$4182026-05-131,99514613.7x

High Volume Contracts — Vol > 500 (10 contracts)

TypeStrikeExpiryVolume

CALL$4302026-05-1513,178

CALL$4252026-05-1111,390

CALL$4202026-05-1111,277

CALL$4202026-05-158,736

CALL$4182026-05-117,392

CALL$4502026-05-157,340

CALL$4252026-05-156,406

CALL$4402026-05-155,260

CALL$4152026-05-114,611

CALL$4352026-05-154,515

P/C OI RATIO

0.5

TOTAL OI

636,036

CALL OI

424,063

PUT OI

211,973

Put/Call volume ratio: 0.38 (bullish)
Total options volume: 212,935 (calls 154,312 / puts 58,623)
Top unusual: CALL $392.5 exp 2026-05-15 — vol/OI 30.5x
42 unusual strikes detected (21C / 21P)

👤 Insider Trading 内部交易

SEC Form 4 filings — officer and director buys/sells in the last 90 days. Net buying is a strong bullish signal.

21% BUY

79% SELL

SHARES BOUGHT (6m)

17,532

SHARES SOLD (6m)

66,420

NET INSIDER FLOW

-48,888

FORM 4 FILINGS (90d)

Recent Insider Transactions (1 buys / 2 sells / 7 grants)

TypeInsiderSharesDate

SELLHOGAN KATHLEEN T12,3202026-03-06

BUYSTANTON JOHN W.5,0002026-02-18

GRANTLIST TERI1452026-01-30

GRANTMASON MARK A.L.1452026-01-30

GRANTSTANTON JOHN W.1452026-01-30

GRANTSCHARF CHARLES W1452026-01-30

SELLNUMOTO TAKESHI2,8502025-12-04

GRANTLIST TERI1302025-12-04

GRANTMASON MARK A.L.1302025-12-04

GRANTSTANTON JOHN W.1302025-12-04

Insider buying: 17,532 shares
Insider selling: 66,420 shares
20 Form 4 filings in last 90 days
Net insider SELLING — bearish signal

🏦 Smart Money Flow 机构资金流向

Quarter-over-quarter position changes from 13F filings. Shows whether institutional investors are accumulating (buying more) or distributing (selling) — the strongest signal of whale conviction.

INSTITUTIONAL OWNERSHIP

78.3%

ACCUMULATION vs DISTRIBUTION

100% DISTRIBUTING

NET SHARES FLOW

-145,141,947

FLOW SCORE

-0.05

ADDING

SELLING

Institutional Position Changes (QoQ)

ActionInstitution% HeldQoQ ΔShares Δ

▬ HOLDVanguard Group Inc9.66%+2.3%+15,935,559

▬ HOLDBlackrock Inc.8.10%+1.7%+10,061,216

▬ HOLDState Street Corporation4.12%+2.1%+6,385,007

▬ HOLDNORGES BANK1.41%+3.2%+3,248,410

▬ HOLDCapital International Investors1.10%+2.8%+2,191,277

▬ HOLDGeode Capital Management, LLC2.46%+1.1%+1,915,451

▬ HOLDMorgan Stanley1.63%+0.8%+985,924

▬ HOLDPrice (T.Rowe) Associates Inc1.69%-4.9%-6,463,227

▬ HOLDFMR, LLC2.71%-4.5%-9,534,910

▼▼ HEAVY SELLJPMORGAN CHASE & CO1.99%-53.5%-169,866,654

ETF & Mutual Fund Flow (1 adding / 0 selling)

ActionFundQoQ ΔShares Δ

▬ HOLDVANGUARD INDEX FUNDS-Vanguard Total Stock Mar-0.2%-397,751

▬ HOLDVANGUARD INDEX FUNDS-Vanguard 500 Index Fund+2.2%+4,016,548

▬ HOLDiShares Trust-iShares Core S&P 500 ETF+0.7%+701,146

▬ HOLDFidelity Concord Street Trust-Fidelity 500 In+0.3%+245,921

▬ HOLDSPDR S&P 500 ETF TRUST-State Street SPDR S&P -1.5%-1,346,786

▲ ADDINGVANGUARD INDEX FUNDS-Vanguard Growth Index Fu+9.6%+6,787,142

▬ HOLDInvesco QQQ Trust, Series 1+1.6%+906,620

▬ HOLDVANGUARD INSTITUTIONAL INDEX FUNDS-Vanguard I-1.6%-675,938

▬ HOLDVANGUARD WORLD FUND-Vanguard Information Tech+2.5%+830,425

▬ HOLDGROWTH FUND OF AMERICA-0.6%-188,671

Institutional ownership: 78.3%
Smart money flow: 0 adding / 1 selling / 9 hold
Net shares removed by institutions: -145,141,947
Biggest mover: JPMORGAN CHASE & CO sold 169,866,654 shares (-53.5%)

🕶 Short Interest & Dark Pool 做空 & 暗池

Short interest as % of float and days-to-cover. Rising SI = bearish pressure. High SI + decreasing = shorts covering (bullish). Squeeze risk rated by SI level.

SHORT INTEREST (% OF FLOAT)

0%10%20%30%+

SHORT % FLOAT

1.1%

DAYS TO COVER

2.5

SI CHANGE (MoM)

↑ 4.5%

SQUEEZE RISK

MINIMAL

SHARES SHORT

83,407,242

PRIOR MONTH

79,835,909

FLOAT SHARES

7,417,589,189

AVG VOLUME

34,212,096

Short interest: 1.1% of float
Days to cover: 2.5
Short interest MoM: ↑ 4.5%
Squeeze risk: MINIMAL

📡 Data Sources 数据来源

Options Flow

BULLISH (80%)

Insider Trading

BEARISH (90%)

Smart Money Flow

NEUTRAL (75%)

Short Interest

NEUTRAL (60%)

📋 Summary 综合摘要

[dark_pool] Short interest: 1.1% of float
[dark_pool] Days to cover: 2.5
[institutional] Institutional ownership: 78.3%
[institutional] Smart money flow: 0 adding / 1 selling / 9 hold
[options_flow] Put/Call volume ratio: 0.38 (bullish)
[options_flow] Total options volume: 212,935 (calls 154,312 / puts 58,623)
[insider] Insider buying: 17,532 shares
[insider] Insider selling: 66,420 shares