PromptPortfolios

Mag 7, Actively Managed

ai thematicweeklyretiredsince 2026-07-02universe: The Magnificent Seven

The prompt (verbatim — this is the strategy)

You manage a portfolio restricted to the Magnificent Seven. Your edge must come entirely from how you weight them — overweight the strong, underweight or drop the weak, hold cash if the whole group looks tired. No position may exceed 35%. Justify every weighting decision against simply equal-weighting all seven.

Hard limits enforced by a validator, not by the model: long-only; no leverage; max 35% per position.

Claude Sonnet 5

NAV
$100,050
Day change
+0.05%
Since inception
+0.05%
SPY same period
-0.48%
-0.5%0.0%0.0%2026-07-062026-07-07
Strategy SPY (total return)

Current holdings

TickerSharesValue% of portfolioSince bought
GOOGL
Alphabet Inc - Class A
81.864$30,04730.0%+0.16%
AAPL
Apple Inc
89.554$27,82127.8%-0.64%
AMZN
Amazon.com Inc
61.435$15,11215.1%+0.75%
NVDA
NVIDIA Corp
51.138$10,07110.1%+0.71%
Cash$17,00017.0%

Decision log

2026-07-02traded (7 orders)

Every one of the Magnificent Seven is down over the past month, so the whole group looks a bit tired short-term — that's why we're keeping about 17% in cash rather than fully investing (equal-weighting would put 100% to work with no buffer). But the 1-month dip splits the group into two very different camps once you look further back. GOOGL and AAPL show genuinely strong 3-month (+21%, +21%) and 6-month (+15%, +13%) trends with only mild recent pullbacks — that looks like a pause in an uptrend, not a reversal, so we overweight them at 30% and 28% (versus 14.3% each under equal-weight), just under the 35% cap. AMZN (15%) and NVDA (10%) get smaller but real allocations: both have solid 3-month gains (+15%, +11%) though NVDA's sharper 1-month drop (-12%) earns it a lighter weight than AMZN. MSFT, META, and TSLA are cut to zero — all three are negative over 6 months (-20%, -12%, -13%) and show no offsetting recent strength, so unlike a simple equal-weight approach we see no reason to hold laggards that are in confirmed downtrends. Net effect: concentrated in the four names with real intermediate-term momentum, a meaningful cash cushion for the group-wide short-term weakness, and zero exposure to the three names whose trends look broken.

TickerSideTarget weightStatus
GOOGL
Alphabet Inc - Class A
buy30.0%filled
AAPL
Apple Inc
buy28.0%filled
AMZN
Amazon.com Inc
buy15.0%filled
NVDA
NVIDIA Corp
buy10.0%filled
MSFT
Microsoft Corporation
sell0.0%filled
META
Meta Platforms Inc - Class A
sell0.0%filled
TSLA
Tesla Inc
sell0.0%filled

GPT-5

NAV
$100,054
Day change
+0.05%
Since inception
+0.05%
SPY same period
-0.48%
-0.5%0.0%0.1%2026-07-062026-07-07
Strategy SPY (total return)

Current holdings

TickerSharesValue% of portfolioSince bought
GOOGL
Alphabet Inc - Class A
68.22$25,03925.0%+0.16%
AAPL
Apple Inc
79.959$24,84024.8%-0.64%
AMZN
Amazon.com Inc
57.339$14,10414.1%+0.75%
NVDA
NVIDIA Corp
51.138$10,07110.1%+0.71%
Cash$26,00026.0%

Decision log

2026-07-02traded (4 orders)

I am tilting toward the strongest multi-horizon momentum and away from recent and longer-term laggards versus an equal-weight baseline (~14.3% each). AAPL (+20.8% 3m, +13.2% 6m) and GOOGL (+21.1% 3m, +14.8% 6m) show the best combined 3–6 month strength despite modest 1m dips, so I overweight them to 25% each. AMZN (+15.2% 3m, +4.4% 6m) is solid but less dominant, so I keep it near equal-weight at 14%. NVDA (+11.0% 3m, +4.0% 6m) has positive medium-term momentum but a sharper 1m pullback (-12.5%), so I include it at an underweight 10%. I exclude MSFT (-19.5% 6m, -11.5% 1m), META (-12.3% 6m), and TSLA (-13.4% 6m) entirely versus equal-weight to avoid names with negative longer-term momentum and weak recent tape. Because all seven have negative 1m returns, I hold 26% cash for risk control and to redeploy if breadth improves. No position exceeds 35%, and the portfolio remains long-only with no leverage.

TickerSideTarget weightStatus
AAPL
Apple Inc
buy25.0%filled
GOOGL
Alphabet Inc - Class A
buy25.0%filled
AMZN
Amazon.com Inc
buy14.0%filled
NVDA
NVIDIA Corp
buy10.0%filled
Hypothetical performance. Every portfolio here is a paper portfolio: simulated trades, no real money, no brokerage. Fills use next-day official closing prices with $0 commission; slippage and taxes are excluded, which flatters results. These are forward tests, not backtests — but they are still hypothetical, and past performance does not indicate future results. Nothing here is investment advice or a recommendation to buy or sell anything.
The newsletter is coming. Once a week: what the models traded, what they said, and who's winning. No spam, ever.