What is the StonkWhisper Whisper Index?

The Whisper Index is StonkWhisper's proprietary market sentiment score (0–90) that aggregates retail investor discussion velocity, volume, and sentiment across Reddit, StockTwits, and other social platforms for 500+ U.S. equities in real time.

What is dark pool trading and why does it matter for stock analysis?

Dark pools are off-exchange trading venues where large institutional orders execute away from public markets. StonkWhisper tracks FINRA-reported dark pool volume to identify unusual institutional accumulation or distribution that may precede significant price moves.

How does StonkWhisper track congressional stock trades?

The STOCK Act requires U.S. Congress members to disclose personal stock trades within 45 days. StonkWhisper monitors these mandatory disclosures in near real-time, surfacing trades by legislators who may have non-public information advantages.

Markel entered NFLX position by 40,000 shares

Aug 4, 2026Last updated Aug 12, 2026

This StonkWhisper whale intelligence report documents significant institutional position changes in $NFLX based on SEC 13F filings and block-level trading data. Quarterly 13F disclosures are required for institutional investment managers with at least $100 million in qualifying assets under management. These filings reveal long positions in U.S. equities held as of quarter end. Material changes in institutional positioning — particularly from concentrated funds with a history of high-conviction bets — are tracked by StonkWhisper as leading indicators of institutional thesis formation or exit.

MARKEL GROUP INC. AUM: $13.1B NEW

AUM: $13.1B · 205 holdings · Period: 2026-06-30

+40,000 Share Change

40,000 Current Shares

$2.9B Current Value

0.02% Portfolio %

— Change %

Position Change Detail

Issuer NETFLIX INC.

Ticker NFLX

Shares 0 → 40,000 +40,000

Value — → $2.9B

Portfolio Weight 0.02%

Change Type New

Period of Report 2026-06-30

Other Markel Positions This Period

Ticker	Issuer	Change Type	Share Change	Value
EPD	ENTERPRISE PRODS PARTNERS L	Increased	+367,000	$20.9B
SMG	SCOTTS MIRACLE-GRO CO	Exited	159,000	—
CMCSA	COMCAST CORP NEW	Decreased	129,706	$17.2B
WY	WEYERHAEUSER CO	Increased	+102,500	$2.9B
ZTS	ZOETIS INC	New	+66,195	$4.8B
FNV	FRANCO NEV CORP	Increased	+65,000	$161.2B
CSX	CSX CORP	Increased	+54,500	$27.8B
TSN	TYSON FOODS INC	Increased	+24,000	$51.7B
ADI	ANALOG DEVICES INC	Decreased	23,574	$393.1B
OTIS	OTIS WORLDWIDE CORP	Increased	+19,000	$7.6B

Other Whales Moving NFLX This Period

Manager	Change Type	Share Change
State Street	Increased	+8,474,820
Baillie Gifford	Increased	+1,134,257
Winton	Decreased	341,013
Jennison	Decreased	309,146
Fisher Investments	Increased	+78,838
Polen Capital	Decreased	15,146
Ares	Exited	3,556

View all sentiment, news, and whale activity for NFLX (NETFLIX INC.).

Track Markel and other whale moves in real time on The Wire →

Get alerts when new 13F filings drop — Go Pro →

Data sourced from SEC 13F institutional holdings filings. This page does not constitute financial advice. StonkWhisper presents public records — it does not verify or guarantee the accuracy of institutional filings. 13F filings are reported quarterly and may lag actual positions.

Last updated: August 12, 2026 at 06:02 UTC