Author
@SebAaltonen
grade Cx.com/SebAaltonen ↗
Sebastian Aaltonen primarily posts deep technical content on graphics, GPUs, renderers, EV/software, and AI tools; that can be weak sector color for semis/EVs, but it is not primar
trader score
+0.98
hit rate
45%
mean α
+0.44%
signals 14d
43
Grade = how their written analysis reads (A best). Trader score = how their last-20 timestamped calls performed vs SPY.
Their picks, scored
Across their last 20 scored bets: 45% hit rate, +0.44% mean alpha, trader score +0.98. Their last-14d mentions, direction-adjusted, have moved -2.3% since posting (mean over 26 mentions with price data).
Recent signals15receipts included
| date (PT) | ticker | author | sent | what they said | since then | receipt |
|---|---|---|---|---|---|---|
| 2026-10-16 | · | @SebAaltonen | · | Reports a Safari compatibility defect in Steam's new automatic achievement-image workflow. | · | tweet ↗ |
| 2026-10-16 | · | @SebAaltonen | · | Reports repeatable severe overheating during brief use of Telegram's iOS app. | · | tweet ↗ |
| 2026-10-15 | · | @SebAaltonen | · | Steam launched CSV-based achievement configuration and automatic grayscale asset creation. | · | tweet ↗ |
| 2026-10-15 | TSLA | @SebAaltonen | -0.30 | Prefers Tesla's 2017 Roadster design and criticizes the newer Roadster and Cybertruck styling. | +2.7% | tweet ↗ |
| 2026-10-15 | AAPL | @SebAaltonen | +0.45 | Compares M5 Max bandwidth and CPU performance with RTX Spark and AMD/Intel desktop cores. | +1.7% | tweet ↗ |
| 2026-10-15 | AMD | @SebAaltonen | -0.15 | Compares M5 Max bandwidth and CPU performance with RTX Spark and AMD/Intel desktop cores. | -8.1% | tweet ↗ |
| 2026-10-15 | NVDA | @SebAaltonen | -0.10 | Compares M5 Max bandwidth and CPU performance with RTX Spark and AMD/Intel desktop cores. | -2.9% | tweet ↗ |
| 2026-10-15 | INTC | @SebAaltonen | -0.15 | Compares M5 Max bandwidth and CPU performance with RTX Spark and AMD/Intel desktop cores. | -8.8% | tweet ↗ |
| 2026-10-15 | AAPL | @SebAaltonen | +0.10 | Views RTX Spark as poorly suited to gaming but well positioned for high-memory AI workloads. | +1.7% | tweet ↗ |
| 2026-10-15 | NVDA | @SebAaltonen | +0.40 | Views RTX Spark as poorly suited to gaming but well positioned for high-memory AI workloads. | -2.9% | tweet ↗ |
| 2026-10-14 | U | @SebAaltonen | +0.25 | Argues AI coding is already broadly adopted in game development, including publicly by Unity. | -1.5% | tweet ↗ |
| 2026-10-14 | NVDA | @SebAaltonen | -0.45 | Forecasts a $1,500-$2,000 RTX launch price despite die size comparable to a prior $499 GPU. | -4.7% | tweet ↗ |
| 2026-10-14 | · | @SebAaltonen | · | Announces release of the PETAFAB teaser trailer. | · | tweet ↗ |
| 2026-10-14 | · | @SebAaltonen | · | Announces PETAFAB's Steam page and a three-week estimated release window. | · | tweet ↗ |
| 2026-10-14 | GOOGL | @SebAaltonen | -0.40 | Criticizes YouTube support after the author's channel disappeared from the profile. | -7.9% | tweet ↗ |
Grade is our human read-worthiness rating; trader score is a rolling 20-bet hit-rate/alpha composite — different things, often disagreeing. “Since then” is direction-unaware in the table; the summary line above adjusts for which way they leaned.