Gulfstream Capital

13F portfolio / Investment manager

Semper Augustus Investments Group

Christopher Bloomstran (president, CIO)

The firm is based in Highlands Ranch, CO, according to its SEC filings.

Its earliest 13F holdings report on SEC EDGAR was filed in February 2008.

SEC Form ADV lists Christopher P. Bloomstran as president and chief investment officer.

The 13F shows long US-listed stock and option positions only. It leaves out short positions, cash, bonds and most non-US holdings.

Reported 13F value
$885M
Positions
50
Est. 1-yearEstimate
+10.2%SPY +15.7%
Est. 3-year, annualizedEstimate
+22.0%SPY +22.8%

As of Jun 30, 2026 · filed Aug 14, 2026

Holdings

7 new · 11 added · 12 trimmed · 20 unchanged · 1 sold out

1BRK/B on Yahoo Finance (opens in a new tab)Berkshire Hathaway Inc DelCL B NEW15.5%$137M273,145Added +8.0%$380.80*$529.25+39.0%
2ALK on Yahoo Finance (opens in a new tab)Alaska Air Group IncCOM10.6%$94M1,793,627Added +5.8%$46.08*$35.30-23.4%
3BRK/A on Yahoo Finance (opens in a new tab)Berkshire Hathaway Inc DelCL A10.2%$90M120Added +3.4%$558465.69*$794223.56+42.2%
4DG on Yahoo Finance (opens in a new tab)Dollar Gen CorpCOM8.7%$77M665,307Added +2.6%$96.46*$133.86+38.8%
5DECK on Yahoo Finance (opens in a new tab)Deckers Outdoor CorpCOM7.5%$67M670,199Added +1.4%$103.42$85.46-17.4%
6DLTR on Yahoo Finance (opens in a new tab)Dollar Tree IncCOM7.2%$64M530,113Added +3.2%$86.15*$124.14+44.1%
7BLDR on Yahoo Finance (opens in a new tab)Builders Firstsource IncCOM5.6%$50M553,722Added +142.6%$90.96$54.58-40.0%
8OLN on Yahoo Finance (opens in a new tab)Olin CorpCOM PAR $14.8%$43M2,153,826Added +6.1%$28.28*$15.53-45.1%
9NEM on Yahoo Finance (opens in a new tab)Newmont CorpCOM4.7%$42M447,228Trimmed -6.7%$37.48*$117.39+213.2%
10KGC on Yahoo Finance (opens in a new tab)Kinross Gold CorpCOM4.1%$37M1,548,995Added +2.7%$5.51*$23.79+331.9%
11PAYX on Yahoo Finance (opens in a new tab)Paychex IncCOM2.4%$21M211,640New$93.12$110.08+18.2%
12FIVE on Yahoo Finance (opens in a new tab)Five Below IncCOM2.1%$19M105,657Trimmed -45.2%$105.45$221.40+110.0%
13SPGI on Yahoo Finance (opens in a new tab)S&P Global IncCOM2.1%$19M45,989New$398.03$426.66+7.2%
14DINO on Yahoo Finance (opens in a new tab)Hf Sinclair CorpCOM2.0%$18M252,187Trimmed -30.1%$45.58*$125.67+175.7%
15DIS on Yahoo Finance (opens in a new tab)Disney Walt CoCOM1.7%$15M160,653Added +5.3%$85.69*$110.23+28.6%
16CTSH on Yahoo Finance (opens in a new tab)Cognizant Technology SolutioCL A1.7%$15M377,991New$52.15$64.89+24.4%
17VLO on Yahoo Finance (opens in a new tab)Valero Energy CorpCOM1.1%$10M37,893Trimmed -14.0%$131.63*$446.20+239.0%
18CMI on Yahoo Finance (opens in a new tab)Cummins IncCOM1.0%$9M12,972Trimmed -67.2%$219.56*$533.83+143.1%
19—Exxon Mobil CorpCOM0.9%$8M57,176Trimmed -0.6%———
20SKYD on Yahoo Finance (opens in a new tab)Paramount Skydance CorpCOM CL B0.7%$6M648,835Trimmed -0.6%$14.30$6.86-52.1%
21TRV on Yahoo Finance (opens in a new tab)Travelers Companies IncCOM0.7%$6M19,100Unchanged$156.47*$388.11+148.0%
22MRK on Yahoo Finance (opens in a new tab)Merck & Co IncCOM0.6%$6M44,633Unchanged$97.44*$146.65+50.5%
23EQNR on Yahoo Finance (opens in a new tab)Equinor AsaSPONSORED ADR0.6%$5M161,175Trimmed -8.4%$24.07*$46.45+93.0%
24SBUX on Yahoo Finance (opens in a new tab)Starbucks CorpCOM0.5%$5M45,761Trimmed -81.8%$82.75*$96.63+16.8%
25GE on Yahoo Finance (opens in a new tab)GE AerospaceCOM NEW0.4%$3M9,352Unchanged$88.79*$315.09+254.9%
26COST on Yahoo Finance (opens in a new tab)Costco Wholesale CorporationCOM0.4%$3M3,354Unchanged$542.08*$991.26+82.9%
27GEV on Yahoo Finance (opens in a new tab)GE Vernova IncCOM0.3%$2M1,994Unchanged$157.80$927.56+487.8%
28NXPI on Yahoo Finance (opens in a new tab)NXP Semiconductors N VCOM0.2%$2M7,662Trimmed -41.0%$189.85*$231.49+21.9%
29GLDM on Yahoo Finance (opens in a new tab)World Gold TrSPDR GLD MINIS0.2%$2M24,063Unchanged$58.61$82.38+40.6%
30SMHI on Yahoo Finance (opens in a new tab)Seacor Marine Hldgs IncCOM0.2%$2M208,175Unchanged$13.28*$8.23-38.0%
31AAPL on Yahoo Finance (opens in a new tab)Apple IncCOM0.2%$1M4,640Added +12.1%$193.08*$342.77+77.5%
32KO on Yahoo Finance (opens in a new tab)Coca Cola CoCOM0.1%$1M15,328Unchanged$53.00*$93.01+75.5%
33AXP on Yahoo Finance (opens in a new tab)American Express CoCOM0.1%$1M3,311Trimmed -3.6%$150.70*$312.73+107.5%
34CVX on Yahoo Finance (opens in a new tab)Chevron CorporationCOM0.1%$1M6,063Unchanged$141.08*$224.22+58.9%
35SGOV on Yahoo Finance (opens in a new tab)iShares Tr0-3 MTH TREASURY0.1%$863K8,570Trimmed -13.6%$96.78$100.58+3.9%
36GOOG on Yahoo Finance (opens in a new tab)Alphabet IncCAP STK CL C0.1%$859K2,432Unchanged$313.60$337.82+7.7%
37PHYS on Yahoo Finance (opens in a new tab)Sprott Asset Management LPPHYSICAL GOLD TR0.1%$720K23,869Unchanged$18.14$31.46+73.4%
38SHEL on Yahoo Finance (opens in a new tab)Shell PLCSPON ADS0.0%$385K4,968Unchanged$57.32*$106.21+85.3%
39MA on Yahoo Finance (opens in a new tab)Mastercard IncorporatedCL A0.0%$338K658Unchanged$524.01$614.51+17.3%
40SYF on Yahoo Finance (opens in a new tab)Synchrony FinancialCOM0.0%$337K4,437Unchanged$41.62$74.11+78.1%
41PM on Yahoo Finance (opens in a new tab)Philip Morris Intl IncCOM0.0%$319K1,762Unchanged$169.57$204.78+20.8%
42GEHC on Yahoo Finance (opens in a new tab)GE Healthcare Technologies ICOMMON STOCK0.0%$293K4,581Unchanged$66.06*$69.77+5.6%
43GOOGL on Yahoo Finance (opens in a new tab)Alphabet IncCAP STK CL A0.0%$250K700Unchanged$285.04$341.57+19.8%
44PSX on Yahoo Finance (opens in a new tab)Phillips 66COM0.0%$249K1,472Unchanged$154.09$293.05+90.2%
45MSFT on Yahoo Finance (opens in a new tab)Microsoft CorpCOM0.0%$239K641New$403.34$526.88+30.6%
46SIVR on Yahoo Finance (opens in a new tab)Abrdn Silver ETF TrustPHYSCL SILVR SHS0.0%$239K4,245Unchanged$52.55$54.24+3.2%
47MCHP on Yahoo Finance (opens in a new tab)Microchip Technology Inc.COM0.0%$221K2,418New$88.40$73.87-16.4%
48NFLX on Yahoo Finance (opens in a new tab)Netflix Inc.COM0.0%$213K2,980Unchanged$88.11$70.36-20.1%
49SUNB on Yahoo Finance (opens in a new tab)Sunbelt Rentals Holdings IncSHS0.0%$208K2,774New$73.91$75.66+2.4%
50JNJ on Yahoo Finance (opens in a new tab)Johnson & JohnsonCOM0.0%$202K794New$231.13$255.21+10.4%

Sold out since Q1 2026

Estimated, from reported holdings

Quarter by quarter

Q4 2023: est. holdings +11.9%Q4 2023: S&P 500 (SPY) +11.6%Q4 ’23Q1 2024: est. holdings +15.4%Q1 2024: S&P 500 (SPY) +10.4%Q1 ’24Q2 2024: est. holdings -2.9%Q2 2024: S&P 500 (SPY) +4.4%Q2 ’24Q3 2024: est. holdings +5.6%Q3 2024: S&P 500 (SPY) +5.8%Q3 ’24Q4 2024: est. holdings -4.2%Q4 2024: S&P 500 (SPY) +2.5%Q4 ’24Q1 2025: est. holdings +9.6%Q1 2025: S&P 500 (SPY) -4.3%Q1 ’25Q2 2025: est. holdings +8.0%Q2 2025: S&P 500 (SPY) +10.8%Q2 ’25Q3 2025: est. holdings +9.9%Q3 2025: S&P 500 (SPY) +8.1%Q3 ’25Q4 2025: est. holdings +8.0%Q4 2025: S&P 500 (SPY) +2.7%Q4 ’25Q1 2026: est. holdings +4.1%Q1 2026: S&P 500 (SPY) -4.4%Q1 ’26Q2 2026: est. holdings +1.2%Q2 2026: S&P 500 (SPY) +15.1%Q2 ’26Q3 2026: est. holdings -3.2%Q3 2026: S&P 500 (SPY) +2.4%Q3 ’26
Estimated holdings return S&P 500 (SPY), by quarter

High-conviction buys (new positions at 3% or more of the portfolio) since Q3 2023: 1. Of 1 with six months of history, 100.0% beat the S&P 500 from the filing date.

Source: SEC Form 13F-HR 0001941040-26-000625, compared with the Q1 2026 report. 0 option rows are excluded from weights. Tickers map from CUSIP via OpenFIGI. Estimated returns weight each position’s next-quarter total return (Yahoo Finance adjusted closes) by its quarter-end value and assume no trades. Estimated cost averages daily adjusted closes in each quarter the share count rose, from Q3 2023 onward (* = held at the start of our data). Price is the latest close.

Important information

Form 13F data is delayed. Managers have up to 45 days after each calendar quarter to file, so holdings shown may have changed materially since the report date. 13F reports cover long positions in US-listed equities and certain other securities only; they exclude short positions, most non-US holdings, cash, bonds and private investments, and managers may request confidential treatment for some positions. Options rows are listed in filings but are not counted in the holdings and weights shown here.

Estimated holdings returns, estimated cost and high-conviction results are hypothetical calculations from quarter-end holdings and public prices, assuming no trades between reports. They are not the actual returns or costs of any fund or manager and do not reflect fees, trading, leverage, shorts or cash. Biographies are drawn from cited public sources. This page is for information only and is not individualized investment advice or a recommendation to buy or sell any security. Gulfstream Capital and its clients may hold positions in securities shown.