Whale Activity Tracker

RMBS

Rambus Inc.
2026-04-17 06:38
$120.03 +0.01% $13.0B
STRONG BUY SIGNAL
Whales are aggressively accumulating RMBS. Multiple signals confirm institutional conviction. Insiders are net buyers (423,960 shares bought vs 67,726 sold) — bullish conviction from management. Strong institutional ownership at 95.0%, but 2 of 10 top holders are distributing.
Action Plan
Options Flow
期权
BULLISH
0.34
Insider
内部交易
BULLISH
Net Buy
Smart Money
机构流向
NEUTRAL
10% accum
Short Interest
做空
NEUTRAL
7.5%
STRONG ACCUMULATION
7.6/10
Whale Activity Rating
Distribution Neutral Accumulation
Options Flow: BULLISH
Insider: BULLISH
Institutional: NEUTRAL
Dark Pool: NEUTRAL
4/4 sources | Confidence: 69%
📈 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)
0.34
BULLISH
CALL VOLUME
2,580
PUT VOLUME
865
TOTAL VOLUME
3,445
UNUSUAL STRIKES
0
High Volume Contracts — Vol > 500 (1 contracts)
TypeStrikeExpiryVolume
CALL$1302026-05-15620
P/C OI RATIO
1.29
TOTAL OI
156
CALL OI
68
PUT OI
88
👤 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.
86% BUY
14% SELL
SHARES BOUGHT (6m)
423,960
SHARES SOLD (6m)
67,726
NET INSIDER FLOW
+356,234
FORM 4 FILINGS (90d)
22
Recent Insider Transactions (0 buys / 1 sells / 9 grants)
TypeInsiderSharesDate
SELLSERAPHIN LUC5,4262026-04-02
GRANTSAYINER NECIP2,2232026-04-01
GRANTKISSNER CHARLES D2,2232026-04-01
GRANTLAUB STEVEN A2,2232026-04-01
GRANTALLEN JOHN K2,7792026-04-01
GRANTQUANFENG DONG2,2232026-04-01
GRANTSTANG ERIC BRADFORD2,2232026-04-01
GRANTPENG VICTOR2,2232026-04-01
GRANTSERAPHIN LUC32,6842026-04-01
GRANTFAN XIANZHI SEAN22,2342026-04-01
🏦 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
95.0%
ACCUMULATION vs DISTRIBUTION
10% ACCUMULATING
90% DISTRIBUTING
NET SHARES FLOW
-1,406,995
FLOW SCORE
+0.02
ADDING
1
SELLING
2
Institutional Position Changes (QoQ)
ActionInstitution% HeldQoQ ΔShares Δ
▲▲ HEAVY BUYInvesco Ltd.3.84%+70.6%+1,716,566
▬ HOLDBlackrock Inc.15.05%+2.9%+466,360
▬ HOLDPrice (T.Rowe) Associates Inc4.98%+2.7%+140,055
▬ HOLDGeode Capital Management, LLC2.63%+3.4%+94,271
▬ HOLDAlliancebernstein L.P.1.76%+4.3%+78,344
▬ HOLDDimensional Fund Advisors LP1.75%-1.8%-35,101
▬ HOLDState Street Corporation3.93%-3.1%-138,280
▬ HOLDVanguard Group Inc11.36%-3.2%-410,248
▼ TRIMMINGNORGES BANK1.57%-13.7%-270,804
▼▼ HEAVY SELLJPMORGAN CHASE & CO1.91%-59.6%-3,048,158
ETF & Mutual Fund Flow (0 adding / 2 selling)
ActionFundQoQ ΔShares Δ
▬ HOLDiShares Trust-iShares Core S&P Mid-Cap ETF+0.9%+30,675
▬ HOLDVANGUARD INDEX FUNDS-Vanguard Total Stock Mar+0.2%+6,428
▼ TRIMMINGiShares Trust-iShares Russell 2000 ETF-6.0%-163,878
▬ HOLDVANGUARD INDEX FUNDS-Vanguard Small-Cap Index-4.2%-107,364
▬ HOLDiShares Trust-iShares Semiconductor ETF+3.4%+63,045
▼ TRIMMINGVANGUARD WORLD FUND-Vanguard Information Tech-14.9%-279,189
▬ HOLDVANGUARD INDEX FUNDS-Vanguard Small-Cap Growt-3.4%-48,803
▬ HOLDT. ROWE PRICE QUANTITATIVE Mgmt Fd.S, INC.-T.-3.2%-40,560
▬ HOLDVANGUARD INDEX FUNDS-Vanguard Extended Market+0.7%+8,293
▬ HOLDFidelity Salem Street Trust-Fidelity Small Ca-1.2%-13,124
🕶 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
7.5%
DAYS TO COVER
3.2
SI CHANGE (MoM)
↓ 5.2%
SQUEEZE RISK
LOW
SHARES SHORT
5,990,703
PRIOR MONTH
6,321,929
FLOAT SHARES
106,941,341
AVG VOLUME
2,486,404
📡 Data Sources 数据来源
Options Flow
BULLISH (50%)
Insider Trading
BULLISH (90%)
Smart Money Flow
NEUTRAL (75%)
Short Interest
NEUTRAL (60%)
📋 Summary 综合摘要