Whale Tracker

LEAN BULLISH

Net positive whale activity for MSFT. Smart money shows interest, but signals are mixed. Insiders are net sellers (83,182 shares sold vs 9,572 bought) — management reducing exposure. Strong institutional ownership at 75.8%, but 3 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)

0.63

BULLISH

CALL VOLUME

249,294

PUT VOLUME

156,480

TOTAL VOLUME

405,774

UNUSUAL STRIKES

Unusual Strikes — Vol/OI > 3x (8C / 2P)

TypeStrikeExpiryVolOIRatio

CALL$4082026-06-153,1167445.1x

CALL$4022026-06-105,71628204.1x

CALL$3952026-06-224072203.5x

CALL$4002026-06-223062153.0x

CALL$3852026-06-101411141.0x

PUT$3752026-06-226566109.3x

PUT$3802026-06-221,3001492.9x

CALL$4082026-06-108,44010381.9x

CALL$4082026-06-17162281.0x

CALL$2202026-06-1860160.0x

High Volume Contracts — Vol > 500 (10 contracts)

TypeStrikeExpiryVolume

CALL$4102026-06-1018,273

CALL$4202026-06-1015,564

PUT$3982026-06-1014,030

CALL$4122026-06-1013,376

PUT$4002026-06-1012,670

CALL$4152026-06-1212,070

PUT$4052026-06-1011,393

CALL$4152026-06-1010,672

CALL$4202026-06-189,065

CALL$4052026-06-108,974

P/C OI RATIO

0.5

TOTAL OI

955,577

CALL OI

638,615

PUT OI

316,962

Put/Call volume ratio: 0.63 (bullish)
Total options volume: 405,774 (calls 249,294 / puts 156,480)
Top unusual: CALL $407.5 exp 2026-06-15 — vol/OI 445.1x
100 unusual strikes detected (57C / 43P)

👤 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.

10% BUY

90% SELL

SHARES BOUGHT (6m)

9,572

SHARES SOLD (6m)

83,182

NET INSIDER FLOW

-73,610

FORM 4 FILINGS (90d)

Recent Insider Transactions (1 buys / 4 sells / 5 grants)

TypeInsiderSharesDate

SELLALTHOFF JUDSON15,5002026-06-01

SELLCOLEMAN AMY1,2622026-05-14

SELLHOGAN KATHLEEN T12,3202026-03-06

BUYSTANTON JOHN W.5,0002026-02-18

GRANTSCHARF CHARLES W1452026-01-30

GRANTSTANTON JOHN W.1452026-01-30

GRANTMASON MARK A.L.1452026-01-30

GRANTLIST TERI1452026-01-30

SELLNUMOTO TAKESHI2,8502025-12-04

GRANTSCHARF CHARLES W1302025-12-04

Insider buying: 9,572 shares
Insider selling: 83,182 shares
26 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

75.8%

ACCUMULATION vs DISTRIBUTION

30% ACCUMULATING

70% DISTRIBUTING

NET SHARES FLOW

+309,520,986

FLOW SCORE

+0.23

ADDING

SELLING

Institutional Position Changes (QoQ)

ActionInstitution% HeldQoQ ΔShares Δ

★ NEW POSITIONVanguard Capital Management LLC6.50%NEW+241,279,043

★ NEW POSITIONVanguard Portfolio Management LLC2.25%NEW+83,745,424

▲▲ HEAVY BUYCapital Research Global Investors1.29%+31.1%+22,767,566

▬ HOLDGeode Capital Management, LLC2.54%+3.2%+5,880,412

▬ HOLDMorgan Stanley1.68%+3.0%+3,660,856

▬ HOLDState Street Corporation4.13%+0.2%+551,083

▬ HOLDBlackrock Inc.7.99%-1.4%-8,546,627

▼ TRIMMINGPrice (T.Rowe) Associates Inc1.58%-6.7%-8,459,793

▼ TRIMMINGFMR, LLC2.56%-5.3%-10,730,284

▼ TRIMMINGJPMORGAN CHASE & CO1.71%-14.0%-20,626,694

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

ActionFundQoQ ΔShares Δ

▬ HOLDVANGUARD INDEX FUNDS-Vanguard Total Stock Mar+1.0%+2,242,206

▬ HOLDVANGUARD INDEX FUNDS-Vanguard 500 Index Fund+0.7%+1,274,507

▬ HOLDiShares Trust-iShares Core S&P 500 ETF+0.6%+544,367

▬ HOLDFidelity Concord Street Trust-Fidelity 500 In+0.3%+331,892

▬ HOLDSPDR S&P 500 ETF TRUST-State Street SPDR S&P +2.6%+2,214,818

▬ HOLDVANGUARD INDEX FUNDS-Vanguard Growth Index Fu+0.7%+550,671

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

▬ HOLDVANGUARD INSTITUTIONAL INDEX FUNDS-Vanguard I-1.8%-784,820

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

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

Institutional ownership: 75.8%
Smart money flow: 3 adding / 3 selling / 4 hold
Net shares added by institutions: +309,520,986
Biggest mover: Vanguard Capital Management LLC added 241,279,043 shares (+100.0%)

🕶 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

1.0%

DAYS TO COVER

2.1

SI CHANGE (MoM)

↓ 7.3%

SQUEEZE RISK

MINIMAL

SHARES SHORT

77,302,679

PRIOR MONTH

83,407,242

FLOAT SHARES

7,417,514,905

AVG VOLUME

34,513,793

Short interest: 1.0% of float
Days to cover: 2.1
Short interest MoM: ↓ 7.3%
Squeeze risk: MINIMAL

📡 Data Sources 数据来源

Options Flow

BULLISH (80%)

Insider Trading

BEARISH (90%)

Smart Money Flow

LEAN BULLISH (75%)

Short Interest

BULLISH (60%)

📋 Summary 综合摘要

[dark_pool] Short interest: 1.0% of float
[dark_pool] Days to cover: 2.1
[institutional] Institutional ownership: 75.8%
[institutional] Smart money flow: 3 adding / 3 selling / 4 hold
[options_flow] Put/Call volume ratio: 0.63 (bullish)
[options_flow] Total options volume: 405,774 (calls 249,294 / puts 156,480)
[insider] Insider buying: 9,572 shares
[insider] Insider selling: 83,182 shares