Whale Tracker

NEUTRAL — WATCH

No clear whale direction for VST. Bullish and bearish signals roughly cancel out. Insiders are net buyers (1,434,163 shares bought vs 332,613 sold) — bullish conviction from management. Strong institutional ownership at 92.8%, but 3 of 10 top holders are distributing.

Action Plan

Hold existing positions — no strong directional signal
Wait for clearer whale activity before adding
Monitor next earnings for institutional positioning changes

📈 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)

2.01

BEARISH

CALL VOLUME

5,901

PUT VOLUME

11,864

TOTAL VOLUME

17,765

UNUSUAL STRIKES

Unusual Strikes — Vol/OI > 3x (4C / 4P)

TypeStrikeExpiryVolOIRatio

CALL$2002026-05-012361023.6x

PUT$1002026-05-154,70128216.7x

CALL$1402026-04-2438312.7x

PUT$1392026-04-2460144.3x

PUT$1202026-04-24121313.9x

PUT$1302026-05-153,3668793.8x

CALL$1502026-05-159772633.7x

CALL$1502026-05-221033.3x

High Volume Contracts — Vol > 500 (4 contracts)

TypeStrikeExpiryVolume

PUT$1002026-05-154,701

PUT$1302026-05-153,366

CALL$1502026-05-15977

CALL$1652026-04-24625

P/C OI RATIO

0.68

TOTAL OI

74,573

CALL OI

44,476

PUT OI

30,097

Put/Call volume ratio: 2.01 (bearish)
Total options volume: 17,765 (calls 5,901 / puts 11,864)
Top unusual: CALL $200.0 exp 2026-05-01 — vol/OI 23.6x
8 unusual strikes detected (4C / 4P)

👤 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.

81% BUY

19% SELL

SHARES BOUGHT (6m)

1,434,163

SHARES SOLD (6m)

332,613

NET INSIDER FLOW

+1,101,550

FORM 4 FILINGS (90d)

Recent Insider Transactions (0 buys / 1 sells / 9 grants)

TypeInsiderSharesDate

SELLMOORE STEPHANIE ZAPATA10,0002026-03-09

GRANTHUDSON SCOTT A6,1062026-03-05

GRANTMOLDOVAN KRISTOPHER E.10,7122026-03-05

GRANTBURKE JAMES A.28,2812026-03-05

GRANTMONTEMAYOR MARGARET M.1,9892026-03-05

GRANTDORE STACEY H.12,8552026-03-05

GRANTMOORE STEPHANIE ZAPATA5,3562026-03-05

GRANTHUDSON SCOTT A117,3322026-02-24

GRANTMOLDOVAN KRISTOPHER E.136,8882026-02-24

GRANTBURKE JAMES A.320,0002026-02-24

Insider buying: 1,434,163 shares
Insider selling: 332,613 shares
13 Form 4 filings in last 90 days
Net insider BUYING — bullish 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

92.8%

ACCUMULATION vs DISTRIBUTION

10% ACCUMULATING

90% DISTRIBUTING

NET SHARES FLOW

-12,594,078

FLOW SCORE

-0.11

ADDING

SELLING

Institutional Position Changes (QoQ)

ActionInstitution% HeldQoQ ΔShares Δ

▲ ADDINGLone Pine Capital Llc1.54%+10.9%+512,682

▬ HOLDBlackrock Inc.8.96%+3.0%+883,264

▬ HOLDState Street Corporation4.87%+2.7%+431,564

▬ HOLDVanguard Group Inc12.28%+0.9%+391,375

▬ HOLDGeode Capital Management, LLC2.65%+1.1%+97,549

▬ HOLDMorgan Stanley2.34%-1.7%-139,334

▬ HOLDNORGES BANK1.37%-3.5%-170,362

▼ TRIMMINGMassachusetts Financial Services Co.1.93%-8.1%-576,331

▼ TRIMMINGFMR, LLC5.02%-14.6%-2,898,559

▼▼ HEAVY SELLJPMORGAN CHASE & CO3.17%-50.9%-11,125,926

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

ActionFundQoQ ΔShares Δ

▬ HOLDVANGUARD INDEX FUNDS-Vanguard Total Stock Mar-0.1%-14,936

▬ HOLDVANGUARD INDEX FUNDS-Vanguard 500 Index Fund+2.2%+175,928

▬ HOLDVANGUARD INDEX FUNDS-Vanguard Mid-Cap Index F-1.6%-119,151

▬ HOLDSELECT SECTOR SPDR TRUST-State Street Utiliti+1.8%+92,364

▬ HOLDiShares Trust-iShares Core S&P 500 ETF-0.9%-38,056

▬ HOLDFidelity Concord Street Trust-Fidelity 500 In+0.2%+6,878

▬ HOLDSPDR S&P 500 ETF TRUST-State Street SPDR S&P -1.8%-70,733

▬ HOLDVANGUARD INDEX FUNDS-Vanguard Value Index Fun+2.5%+75,455

▬ HOLDVANGUARD INDEX FUNDS-Vanguard Mid-Cap Growth -2.3%-66,425

▲ ADDINGMFS Series Trust IV-MFS Mid Cap Growth Fund+8.9%+189,251

Institutional ownership: 92.8%
Smart money flow: 1 adding / 3 selling / 6 hold
Net shares removed by institutions: -12,594,078
Biggest mover: JPMORGAN CHASE & CO sold 11,125,926 shares (-50.9%)

🕶 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

3.2%

DAYS TO COVER

2.0

SI CHANGE (MoM)

↓ 5.7%

SQUEEZE RISK

MINIMAL

SHARES SHORT

9,333,104

PRIOR MONTH

9,901,441

FLOAT SHARES

314,317,669

AVG VOLUME

4,848,178

Short interest: 3.2% of float
Days to cover: 2.0
Short interest MoM: ↓ 5.7%
Squeeze risk: MINIMAL

📡 Data Sources 数据来源

Options Flow

BEARISH (80%)

Insider Trading

BULLISH (90%)

Smart Money Flow

NEUTRAL (75%)

Short Interest

BULLISH (60%)

📋 Summary 综合摘要

[dark_pool] Short interest: 3.2% of float
[dark_pool] Days to cover: 2.0
[institutional] Institutional ownership: 92.8%
[institutional] Smart money flow: 1 adding / 3 selling / 6 hold
[options_flow] Put/Call volume ratio: 2.01 (bearish)
[options_flow] Total options volume: 17,765 (calls 5,901 / puts 11,864)
[insider] Insider buying: 1,434,163 shares
[insider] Insider selling: 332,613 shares