Mainstream Capital Management LLC

Q1 2026 13F-HR Holdings

Location
Los Angeles, CA
Holdings as of
3/31/2026
Date filed
4/17/2026
Form type
13F-HR
Num holdings
88
Total value ($000)
$149,065
Net value change ($000)
-3,691 (-2.4%)
New positions
5
Sold out positions
5
Turnover %
4.4%
Sector allocation + QoQ delta (equities-only)
Prev filing: 1/21/2026 Next filing: — SEC filing

Snapshot: Change Analysis

Compared to Q4 2025
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)
GSST 2,534 39.8%
TOST 1,522 NEW
GEV 1,217 NEW
GLW 688 55.5%
CAVA 505 41.4%
COST 313 15.6%
GS 280 21.1%
CVX 278 35.7%
WMT 261 19.0%
ATI 247 NEW
Top Reduces (Value $000, Stocks/ETFs)
CRM -1,601 -100.0%
LZ -958 -42.9%
BXP -838 -100.0%
AMZN -811 -11.1%
AAPL -693 -7.1%
META -675 -13.5%
MSFT -572 -22.3%
JEPI -572 -34.9%
GOOGL -522 -8.3%
IWF -464 -11.1%
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