Whale Tracker

LEAN BULLISH

Net positive whale activity for ALAB. Smart money shows interest, but signals are mixed. Short interest at 10.1% of float — moderate bearish positioning. Insiders are net sellers (1,880,698 shares sold vs 846,558 bought) — management reducing exposure. Strong institutional ownership at 80.6% with 6 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)

0.47

BULLISH

CALL VOLUME

12,300

PUT VOLUME

5,742

TOTAL VOLUME

18,042

UNUSUAL STRIKES

Unusual Strikes — Vol/OI > 3x (6C / 4P)

TypeStrikeExpiryVolOIRatio

CALL$3002026-05-223,29711299.7x

PUT$2352026-05-22116338.7x

CALL$3002026-06-2633133.0x

CALL$2702026-05-293341522.3x

PUT$2302026-05-223762415.7x

PUT$2322026-05-2212112.0x

CALL$3202026-05-2232310.7x

CALL$2502026-06-2610110.0x

CALL$2852026-05-22818.0x

PUT$2382026-05-22818.0x

High Volume Contracts — Vol > 500 (6 contracts)

TypeStrikeExpiryVolume

CALL$3002026-05-223,297

CALL$2502026-06-18953

CALL$2402026-05-22663

CALL$2352026-05-22544

PUT$1122026-05-29534

CALL$2602026-06-18527

P/C OI RATIO

1.01

TOTAL OI

66,199

CALL OI

32,949

PUT OI

33,250

Put/Call volume ratio: 0.47 (bullish)
Total options volume: 18,042 (calls 12,300 / puts 5,742)
Top unusual: CALL $300.0 exp 2026-05-22 — vol/OI 299.7x
26 unusual strikes detected (14C / 12P)

👤 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.

31% BUY

69% SELL

SHARES BOUGHT (6m)

846,558

SHARES SOLD (6m)

1,880,698

NET INSIDER FLOW

-1,034,140

FORM 4 FILINGS (90d)

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

TypeInsiderSharesDate

SELLMOHAN JITENDRA139,9512026-05-07

SELLDYCKERHOFF STEFAN A12,4992026-05-07

SELLGAJENDRA SANJAY230,6392026-05-07

SELLGAJENDRA SANJAY40,2532026-05-07

GRANTLYNCH DESMOND M49,5842026-05-01

SELLMOHAN JITENDRA335,8812026-04-20

SELLDYCKERHOFF STEFAN A24,9982026-04-20

SELLMOHAN JITENDRA2,9672026-04-15

SELLMOHAN JITENDRA123,7502026-04-10

SELLALBA MANUEL183,0002026-04-01

Insider buying: 846,558 shares
Insider selling: 1,880,698 shares
19 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

80.6%

ACCUMULATION vs DISTRIBUTION

60% ACCUMULATING

40% DISTRIBUTING

NET SHARES FLOW

+7,464,134

FLOW SCORE

+0.36

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

▲▲ HEAVY BUYState Street Corporation1.81%+32.5%+760,330

▲▲ HEAVY BUYMorgan Stanley1.13%+33.0%+479,980

▲▲ HEAVY BUYFred Alger Management, LLC1.13%+25.5%+393,226

▲ ADDINGFMR, LLC14.78%+5.2%+1,254,586

▬ HOLDGeode Capital Management, LLC1.42%+4.5%+104,823

▬ HOLDShaw D.E. & Co., Inc.1.43%-3.7%-94,753

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

▼▼ HEAVY SELLAlliancebernstein L.P.1.27%-25.4%-740,718

ETF & Mutual Fund Flow (2 adding / 1 selling)

ActionFundQoQ ΔShares Δ

▲ ADDINGFidelity Select Portfolios-Select Semiconduct+17.1%+1,082,929

▬ HOLDVANGUARD INDEX FUNDS-Vanguard Total Stock Mar+1.4%+59,894

▬ HOLDVANGUARD INDEX FUNDS-Vanguard Small-Cap Index-2.7%-85,730

▬ HOLDFidelity Securities Fund-Fidelity Blue Chip G+2.0%+50,421

▬ HOLDiShares Trust-iShares Semiconductor ETF-2.5%-61,133

▼ TRIMMINGFidelity Mt. Vernon Street Trust-Fidelity Gro-7.2%-175,885

▬ HOLDFidelity Select Portfolios-Technology Portfol0.0%0

▲ ADDINGVanEck ETF Trust-VanEck Semiconductor ETF+7.8%+130,916

▬ HOLDVANGUARD INDEX FUNDS-Vanguard Small-Cap Growt-1.9%-33,333

▬ HOLDVANGUARD WORLD FUND-Vanguard Information Tech+2.5%+35,407

Institutional ownership: 80.6%
Smart money flow: 6 adding / 2 selling / 2 hold
Net shares added by institutions: +7,464,134
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

10.1%

DAYS TO COVER

2.3

SI CHANGE (MoM)

↓ 15.3%

SQUEEZE RISK

MODERATE

SHARES SHORT

13,125,304

PRIOR MONTH

15,495,055

FLOAT SHARES

141,512,680

AVG VOLUME

5,177,341

Elevated short interest — bears have a notable position. Watch for SI trend direction as the key signal.

Short interest: 10.1% of float
Days to cover: 2.3
Short interest MoM: ↓ 15.3%
Squeeze risk: MODERATE

📡 Data Sources 数据来源

Options Flow

BULLISH (80%)

Insider Trading

NEUTRAL (90%)

Smart Money Flow

LEAN BULLISH (75%)

Short Interest

NEUTRAL (60%)

📋 Summary 综合摘要

[dark_pool] Short interest: 10.1% of float
[dark_pool] Days to cover: 2.3
[institutional] Institutional ownership: 80.6%
[institutional] Smart money flow: 6 adding / 2 selling / 2 hold
[options_flow] Put/Call volume ratio: 0.47 (bullish)
[options_flow] Total options volume: 18,042 (calls 12,300 / puts 5,742)
[insider] Insider buying: 846,558 shares
[insider] Insider selling: 1,880,698 shares