Whale Activity Tracker

WDC

Western Digital Corporation
2026-04-27 06:31
$404.00 +0.22% $138.1B
LEAN BEARISH
Whales showing caution on WDC. Distribution signals outweigh accumulation. Insiders are net sellers (176,347 shares sold vs 23,145 bought) — management reducing exposure. Strong institutional ownership at 103.0%, but 2 of 10 top holders are distributing.
Action Plan
Options Flow
期权
BEARISH
1.93
Insider
内部交易
BEARISH
Net Sell
Smart Money
机构流向
LEAN BULLISH
20% accum
Short Interest
做空
NEUTRAL
8.9%
DISTRIBUTION
3.1/10
Whale Activity Rating
Distribution Neutral Accumulation
Options Flow: BEARISH
Insider: BEARISH
Institutional: LEAN BULLISH
Dark Pool: NEUTRAL
4/4 sources | Confidence: 76%
📈 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)
1.93
BEARISH
CALL VOLUME
7,726
PUT VOLUME
14,896
TOTAL VOLUME
22,622
UNUSUAL STRIKES
0
High Volume Contracts — Vol > 500 (9 contracts)
TypeStrikeExpiryVolume
PUT$1652026-05-011,011
PUT$1752026-05-011,002
PUT$1552026-05-01778
PUT$1502026-05-01686
PUT$3802026-05-01604
CALL$5302026-05-01556
PUT$2402026-05-29524
PUT$1452026-05-01523
PUT$3502026-05-01509
P/C OI RATIO
0.0
TOTAL OI
68
CALL OI
68
PUT OI
0
👤 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.
12% BUY
88% SELL
SHARES BOUGHT (6m)
23,145
SHARES SOLD (6m)
176,347
NET INSIDER FLOW
-153,202
FORM 4 FILINGS (90d)
37
Recent Insider Transactions (0 buys / 7 sells / 0 grants)
TypeInsiderSharesDate
SELLTREGILLIS CYNTHIA LOCK3632026-04-21
SELLGUBBI VIDYADHARA K8,5182026-03-06
SELLGUBBI VIDYADHARA K10,1482026-03-04
SELLTREGILLIS CYNTHIA LOCK9,3242026-03-04
SELLCOLE MARTIN I6,0002026-03-02
SELLTREGILLIS CYNTHIA LOCK2142026-02-26
SELLTREGILLIS CYNTHIA LOCK4382026-02-24
🏦 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
103.0%
ACCUMULATION vs DISTRIBUTION
20% ACCUMULATING
80% DISTRIBUTING
NET SHARES FLOW
-9,771,051
FLOW SCORE
+0.05
ADDING
2
SELLING
2
Institutional Position Changes (QoQ)
ActionInstitution% HeldQoQ ΔShares Δ
▲▲ HEAVY BUYFMR, LLC9.97%+42.2%+10,037,174
▲ ADDINGMorgan Stanley2.64%+6.5%+541,973
▬ HOLDBlackrock Inc.10.47%+2.3%+794,963
▬ HOLDState Street Corporation4.63%+1.5%+233,483
▬ HOLDWCM Investment Management, LLC1.97%-1.3%-87,444
▬ HOLDGeode Capital Management, LLC2.74%-1.4%-131,799
▬ HOLDAmeriprise Financial, Inc.2.51%-1.9%-163,253
▬ HOLDVanguard Group Inc12.49%-2.2%-934,925
▼▼ HEAVY SELLJPMORGAN CHASE & CO4.22%-40.5%-9,742,987
▼▼ HEAVY SELLBank of America Corporation3.55%-46.1%-10,318,236
ETF & Mutual Fund Flow (2 adding / 0 selling)
ActionFundQoQ ΔShares Δ
▬ HOLDVANGUARD INDEX FUNDS-Vanguard Total Stock Mar-1.7%-182,496
▬ HOLDVANGUARD INDEX FUNDS-Vanguard 500 Index Fund+0.7%+61,634
▬ HOLDVANGUARD INDEX FUNDS-Vanguard Mid-Cap Index F-3.0%-231,734
▬ HOLDInvesco QQQ Trust, Series 1-2.4%-175,022
▬ HOLDColumbia Fd.s Series TRT II-Columbia Seligman-2.4%-115,443
▬ HOLDiShares Trust-iShares Core S&P 500 ETF-0.9%-41,358
▬ HOLDFidelity Concord Street Trust-Fidelity 500 In+0.2%+7,384
▬ HOLDSPDR S&P 500 ETF TRUST-State Street SPDR S&P -2.5%-100,290
★ NEW POSIAMERICAN BALANCED FUNDNEW+1,899,937
★ NEW POSIJPMorgan Trust II-JPMorgan Large Cap Growth FNEW+1,841,308
🕶 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
8.9%
DAYS TO COVER
3.1
SI CHANGE (MoM)
↓ 2.9%
SQUEEZE RISK
LOW
SHARES SHORT
26,758,181
PRIOR MONTH
27,567,965
FLOAT SHARES
336,718,903
AVG VOLUME
9,417,536
📡 Data Sources 数据来源
Options Flow
BEARISH (80%)
Insider Trading
BEARISH (90%)
Smart Money Flow
LEAN BULLISH (75%)
Short Interest
NEUTRAL (60%)
📋 Summary 综合摘要