Whale Tracker

LEAN BULLISH

Net positive whale activity for ALAB. Smart money shows interest, but signals are mixed. Insiders are net sellers (2,536,440 shares sold vs 372,398 bought) — management reducing exposure. Strong institutional ownership at 73.0% with 7 of 10 top holders actively accumulating this quarter.

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)

0.51

BULLISH

CALL VOLUME

24,007

PUT VOLUME

12,242

TOTAL VOLUME

36,249

UNUSUAL STRIKES

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

TypeStrikeExpiryVolOIRatio

CALL$5002026-06-187,84211712.9x

CALL$4222026-06-12133344.3x

PUT$3052026-06-121,3806023.0x

CALL$2782026-06-1220120.0x

CALL$3452026-06-121,3597218.9x

CALL$3222026-07-0242314.0x

CALL$4182026-06-1292811.5x

CALL$4802026-07-1011111.0x

CALL$4022026-06-12109129.1x

PUT$1952026-06-12130158.7x

High Volume Contracts — Vol > 500 (10 contracts)

TypeStrikeExpiryVolume

CALL$5002026-06-187,842

CALL$3752026-06-122,152

PUT$3052026-06-121,380

PUT$3252026-06-121,375

CALL$3452026-06-121,359

PUT$3102026-06-181,127

CALL$3302026-06-18667

PUT$3502026-06-18617

CALL$3602026-06-12567

CALL$3602026-06-18559

P/C OI RATIO

0.83

TOTAL OI

106,874

CALL OI

58,481

PUT OI

48,393

Put/Call volume ratio: 0.51 (bullish)
Total options volume: 36,249 (calls 24,007 / puts 12,242)
Top unusual: CALL $500.0 exp 2026-06-18 — vol/OI 712.9x
41 unusual strikes detected (31C / 10P)

👤 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.

13% BUY

87% SELL

SHARES BOUGHT (6m)

372,398

SHARES SOLD (6m)

2,536,440

NET INSIDER FLOW

-2,164,042

FORM 4 FILINGS (90d)

Recent Insider Transactions (0 buys / 8 sells / 2 grants)

TypeInsiderSharesDate

GRANTDYCKERHOFF STEFAN A8372026-06-04

SELLDYCKERHOFF STEFAN A12,4992026-06-03

SELLGAJENDRA SANJAY400,0002026-05-21

SELLMAZZARA PHILIP7962026-05-21

SELLMOHAN JITENDRA139,9512026-05-19

SELLGAJENDRA SANJAY280,0002026-05-19

SELLMOHAN JITENDRA95,4442026-05-18

SELLGAJENDRA SANJAY95,4442026-05-18

SELLMAZZARA PHILIP14,0762026-05-18

GRANTMAZZARA PHILIP1312026-05-14

Insider buying: 372,398 shares
Insider selling: 2,536,440 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

73.0%

ACCUMULATION vs DISTRIBUTION

70% ACCUMULATING

30% DISTRIBUTING

NET SHARES FLOW

+9,365,924

FLOW SCORE

+0.27

ADDING

SELLING

Institutional Position Changes (QoQ)

ActionInstitution% HeldQoQ ΔShares Δ

★ NEW POSITIONVanguard Portfolio Management LLC4.26%NEW+3,654,889

★ NEW POSITIONVanguard Capital Management LLC3.70%NEW+3,170,366

★ NEW POSITIONAtreides Management, LP1.96%NEW+1,754,591

▲▲ HEAVY BUYAmundi1.10%+77.9%+823,471

▲▲ HEAVY BUYFred Alger Management, LLC1.50%+33.0%+638,269

▲ ADDINGAlliancebernstein L.P.1.47%+15.4%+334,938

▲ ADDINGState Street Corporation1.94%+7.5%+233,730

▬ HOLDFMR, LLC14.89%+0.8%+195,078

▬ HOLDGeode Capital Management, LLC1.46%+3.3%+79,187

▼ TRIMMINGBlackrock Inc.6.68%-11.7%-1,518,595

ETF & Mutual Fund Flow (4 adding / 0 selling)

ActionFundQoQ ΔShares Δ

▬ HOLDFidelity Select Portfolios-Select Semiconduct0.0%0

▲ ADDINGVANGUARD INDEX FUNDS-Vanguard Total Stock Mar+8.2%+346,666

▲ ADDINGVANGUARD INDEX FUNDS-Vanguard Small-Cap Index+8.8%+269,829

▬ HOLDFidelity Securities Fund-Fidelity Blue Chip G-1.2%-30,643

▬ HOLDiShares Trust-iShares Semiconductor ETF+3.4%+82,898

▬ HOLDFidelity Mt. Vernon Street Trust-Fidelity Gro0.0%0

▬ HOLDFidelity Select Portfolios-Technology Portfol0.0%0

▲ ADDINGVANGUARD INDEX FUNDS-Vanguard Small-Cap Growt+7.9%+136,008

▲ ADDINGVanEck ETF Trust-VanEck Semiconductor ETF+8.8%+146,474

▬ HOLDVANGUARD INDEX FUNDS-Vanguard Extended Market+4.4%+61,914

Institutional ownership: 73.0%
Smart money flow: 7 adding / 1 selling / 2 hold
Net shares added by institutions: +9,365,924
Biggest mover: Vanguard Portfolio Management LLC added 3,654,889 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

9.5%

DAYS TO COVER

2.2

SI CHANGE (MoM)

↓ 14.0%

SQUEEZE RISK

LOW

SHARES SHORT

12,417,409

PRIOR MONTH

14,440,640

FLOAT SHARES

153,435,817

AVG VOLUME

5,587,226

Short interest: 9.5% of float
Days to cover: 2.2
Short interest MoM: ↓ 14.0%
Squeeze risk: LOW

📡 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: 9.5% of float
[dark_pool] Days to cover: 2.2
[institutional] Institutional ownership: 73.0%
[institutional] Smart money flow: 7 adding / 1 selling / 2 hold
[options_flow] Put/Call volume ratio: 0.51 (bullish)
[options_flow] Total options volume: 36,249 (calls 24,007 / puts 12,242)
[insider] Insider buying: 372,398 shares
[insider] Insider selling: 2,536,440 shares