This tracks how US Space is performing against the S&P 500: the relative-strength read traders use to find themes gaining momentum and the strongest stocks within them. Look for three things: whether it is gaining or losing ground on the index, whether the move is broad or led by a few large names, and which stocks lead on relative strength.
Current read · as at 11 Sept 2026
US Space is underperforming the S&P 500 but gaining ground (the improving zone of the rotation chart). It is down 16.7% over the past month but up 17.3% year to date. 2 of 10 stocks are above their 50-day average, with only a minority participating. On 3-month relative strength, GSAT.US, IRDM.US and VOYG.US lead the theme.
Relative strength is measured against S&P 500, centred at 100. Above 100 means it outpaced the benchmark.
Performance charts
Rebased to 100 vs S&P 500
End of day
US Space vs S&P 500
Rising = outperforming
100 = matches benchmark. Above = outpacing it; below = lagging.
What's underneath the leaders
End of day
Latest-day drivers
- VOYG.US+2.46%+0.25%
- RDW.US-2.30%-0.23%
- LUNR.US-1.85%-0.18%
Top 3 account for 55% of the total move.
Contribution is each holding's weight times its one-day move.
Emerging leaders (3-month rank)
- 1GSAT.US+6
- 2IRDM.US-1
- 3VOYG.US+2
- 4SATS.US+5
- 5ASTS.US+5
Rank 1 = strongest 3-month move. Delta is the rank change; positive means improving.
Breadth and Effective N measure how widely the basket is moving right now — a participation gauge, not a forecast.
Constituents
Weights and contribution to the basket move
ASTS.US | Ast Spacemobile Inc | $59.86 | -0.08% | 10.0% | -0.01% |
FLY.US | FLY | $21.13 | +1.10% | 10.0% | +0.11% |
GSAT.US | Globalstar, Inc. Common Stock | $82.48 | +0.62% | 10.0% | +0.06% |
IRDM.US | IRDM | $47.30 | +0.57% | 10.0% | +0.06% |
LUNR.US | LUNR | $14.35 | -1.85% | 10.0% | -0.18% |
PL.US | Planet Labs PBC | $16.45 | -1.44% | 10.0% | -0.14% |
RDW.US | RDW | $10.62 | -2.30% | 10.0% | -0.23% |
RKLB.US | Rocket Lab USA Inc. | $62.95 | +1.60% | 10.0% | +0.16% |
SATS.US | EchoStar CorporationData pending | - | - | 10.0% | - |
VOYG.US | VOYG | $33.78 | +2.46% | 10.0% | +0.25% |
ASTS.US
Ast Spacemobile Inc
- Last
- $59.86
- 1D
- -0.08%
- Weight
- 10.0%
- Contribution
- -0.01%
FLY.US
FLY
- Last
- $21.13
- 1D
- +1.10%
- Weight
- 10.0%
- Contribution
- +0.11%
GSAT.US
Globalstar, Inc. Common Stock
- Last
- $82.48
- 1D
- +0.62%
- Weight
- 10.0%
- Contribution
- +0.06%
IRDM.US
IRDM
- Last
- $47.30
- 1D
- +0.57%
- Weight
- 10.0%
- Contribution
- +0.06%
LUNR.US
LUNR
- Last
- $14.35
- 1D
- -1.85%
- Weight
- 10.0%
- Contribution
- -0.18%
PL.US
Planet Labs PBC
- Last
- $16.45
- 1D
- -1.44%
- Weight
- 10.0%
- Contribution
- -0.14%
RDW.US
RDW
- Last
- $10.62
- 1D
- -2.30%
- Weight
- 10.0%
- Contribution
- -0.23%
RKLB.US
Rocket Lab USA Inc.
- Last
- $62.95
- 1D
- +1.60%
- Weight
- 10.0%
- Contribution
- +0.16%
SATS.US
EchoStar Corporation
- Last
- -
- 1D
- -
- Weight
- 10.0%
- Contribution
- -
Data pending
VOYG.US
VOYG
- Last
- $33.78
- 1D
- +2.46%
- Weight
- 10.0%
- Contribution
- +0.25%
Last price shown at full precision. Contribution is each holding's weight times its one-day move. A dash marks data pending after the latest end-of-day refresh.
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Equal weighted. Equal-weighted basket seeded from US-listed space launch, satellite, and space technology companies, screened nightly from end-of-day data. Active US common stocks only, with a market cap of at least USD 500 million and a 90-day average daily value traded of at least USD 2 million, top 20 by market cap.