Universe›Financials›Investment Banking & Brokerage›Investment Banking & Brokerage›Interactive Brokers
Observatory · observe first
Interactive Brokers
IBKR · United States · Investment Banking & Brokerage · matched S&P 500 member. Follow its market-weight contribution.
Historical time machine
Historical observation
20182026
Universe weight
0.007%
12M weight contribution
+0.001 pp
3M weight contribution
+0.000 pp
12M price return
+56.8%
Share of matched S&P 500 members
Monthly observations through Aug 2026
Company price index
A separate dimension from market allocation
Historical observations
Most recent 24 observations at or before the selected month
| Month | Market cap | Universe weight | 12M weight change | 12M return | Above 6M weight average |
|---|---|---|---|---|---|
| Aug 2026 | $4.1bn | 0.007% | +0.001 pp | +56.8% | Yes |
| Jul 2026 | $3.7bn | 0.006% | +0.006 pp | +34.8% | Yes |
| Jun 2026 | $3.7bn | 0.006% | +0.006 pp | +57.8% | Yes |
| May 2026 | $3.7bn | 0.006% | +0.006 pp | +66.5% | Yes |
| Apr 2026 | $3.4bn | 0.005% | +0.005 pp | +86.0% | No |
| Mar 2026 | $2.8bn | 0.004% | +0.004 pp | +62.8% | No |
| Feb 2026 | $3.0bn | 0.004% | +0.004 pp | +40.0% | No |
| Jan 2026 | $3.2bn | 0.006% | +0.006 pp | +38.5% | Yes |
| Dec 2025 | $2.7bn | 0.005% | +0.005 pp | +46.4% | Yes |
| Nov 2025 | $2.7bn | 0.005% | +0.005 pp | +36.7% | Yes |
| Oct 2025 | $3.0bn | 0.006% | +0.006 pp | +85.4% | Yes |
| Sep 2025 | $2.9bn | 0.006% | +0.006 pp | +98.6% | Yes |
| Aug 2025 | $2.6bn | 0.005% | +0.005 pp | +94.2% | Yes |
Its weight is estimated market cap divided by the total estimated market cap of matched S&P 500 members for the month. This is not an official float-adjusted S&P index weight.