Mainstream Capital Management LLC

Q3 2026 13F-HR Holdings

Location
Los Angeles, CA
Holdings as of
9/30/2026
Date filed
10/23/2026
Form type
13F-HR
Num holdings
302
Total value ($000)
$169,851
Net value change ($000)
+3,789 (2.3%)
New positions
215
Sold out positions
3
Turnover %
7.6%
Sector allocation + QoQ delta (equities-only)
Prev filing: 7/15/2026 Next filing: — SEC filing

Snapshot: Change Analysis

Compared to Q2 2026
Methodology: sector metrics are equities-only; instrument mix chart is ex-options; options exposure is shown separately. Why this matters.
Top Adds (Value $000, Stocks/ETFs)
CRXP 2,073 NEW
MSFT 1,615 80.2%
NVDA 1,444 26.1%
AAPL 1,344 13.6%
META 1,253 29.6%
CRWD 1,076 40.8%
DYNF 883 225.3%
IVE 762 292.0%
IVW 755 79.9%
OEF 734 NEW
Top Reduces (Value $000, Stocks/ETFs)
JPST -3,402 -16.7%
IWF -1,398 -32.9%
IWD -1,278 -36.1%
DOV -1,272 -99.7%
GLW -1,252 -34.3%
UBER -797 -100.0%
HD -727 -100.0%
BABA -565 -68.2%
VOE -547 -30.6%
CAVA -509 -30.3%
Instrument mix + QoQ Δ (ex-options)
How this table is calculated: SEC VALUE ($000) is used as reported. For derivatives (PUT/CALL/WARRANT/RIGHT), SEC value represents reported underlying exposure, not premium cash paid/received. Column % is bucket-based: non-options share is calculated inside non-option total, options share is calculated inside options total. Details.
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Instrument:
Issuer Name Ticker Sector Industry Class History Value ($000) % Shares Shares Δ Shares Δ% Value Δ ($000) Value Δ% Principal Option Type