Author
@Ruby_investment Ruby_investment
grade Cx.com/Ruby_investment ↗
Transparent Japanese retail swing trader riding AI-infra momentum with a risk-framework overlay
Posts real-time tickered entries, trims, exits and candid re
trader score
-1.01
hit rate
28%
mean α
-0.60%
signals 14d
41
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 18 scored bets: 28% hit rate, -0.60% mean alpha, trader score -1.01. Their last-14d mentions, direction-adjusted, have moved -10.0% since posting (mean over 11 mentions with price data).
Recent signals15receipts included
| date (PT) | ticker | author | sent | what they said | since then | receipt |
|---|---|---|---|---|---|---|
| 2026-10-15 | 285A.T | @Ruby_investment | -0.30 | Kioxia may work long term, but the author says it is not yet an easy buy. | — | tweet ↗ |
| 2026-10-15 | · | @Ruby_investment | · | Author exited all small caps and says index and large-cap holdings were hit. | · | tweet ↗ |
| 2026-10-15 | · | @Ruby_investment | · | Framework distinguishes industry survivors from companies that will deliver strong shareholder returns. | · | tweet ↗ |
| 2026-10-14 | · | @Ruby_investment | · | Explains why iDeCo tax savings and compounding can outweigh salient liquidity and exit-tax concerns. | · | tweet ↗ |
| 2026-10-14 | IREN | @Ruby_investment | +0.10 | Highlights CRWV's 15.5% drop immediately after Jim Cramer preferred it over IREN. | -18.5% | tweet ↗ |
| 2026-10-14 | CRWV | @Ruby_investment | -0.55 | Highlights CRWV's 15.5% drop immediately after Jim Cramer preferred it over IREN. | -17.6% | tweet ↗ |
| 2026-10-14 | · | @Ruby_investment | · | Says it is difficult to imagine the market recovering by the close. | · | tweet ↗ |
| 2026-10-14 | OSCR | @Ruby_investment | +0.48 | Notes OSCR is up 136% year to date despite receiving little attention and discloses no position. | -9.7% | tweet ↗ |
| 2026-10-14 | NBIS | @Ruby_investment | +0.62 | Buying back a small amount of NBIS. — Explicitly states a small repurchase of NBIS during the decline. | -14.7% | tweet ↗ |
| 2026-10-14 | · | @Ruby_investment | · | Argues against discouraging Japanese AI investment because productivity supports sustainable wage growth. | · | tweet ↗ |
| 2026-10-13 | · | @Ruby_investment | · | Explains why variable rates can retain relative appeal during a rising-rate regime. | · | tweet ↗ |
| 2026-10-12 | · | @Ruby_investment | · | Rejects a simplistic FANG-plus-versus-leveraged-Nasdaq choice in favor of portfolio construction. | · | tweet ↗ |
| 2026-10-12 | DRAM | @Ruby_investment | -0.40 | Says DRAM is at a difficult chart position and still has downside risk. | — | tweet ↗ |
| 2026-10-12 | · | @Ruby_investment | · | Discloses taking profits in relatively small growth stocks and choosing not to force new exposure. | · | tweet ↗ |
| 2026-10-12 | · | @Ruby_investment | · | Buy a small amount of Japanese semiconductor exposure after a 7.4% drop. — Explicitly says the author will buy a little after the Nikkei semiconductor index fell 7.4%. | · | 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.