# Portfolio overlap — TSBZX vs LUTAX Comparing **T. Rowe Price QM U.S. Bond Index Fund** (2026-01-31) and **Columbia U.S. Treasury Index Fund** (2026-01-31). - Shared positions: 69 - T. Rowe Price QM U.S. Bond Index Fund covered by Columbia U.S. Treasury Index Fund: 0.2031949891753708889061628543 - Columbia U.S. Treasury Index Fund covered by T. Rowe Price QM U.S. Bond Index Fund: 0.2031949891753708889061628542 ## T. Rowe Price QM U.S. Bond Index Fund — top positions | Security | Weight | Shared | |----------|--------|--------| | T Rowe Price Government Reserve Investment Fund | 0.042419 | | | US TREASURY N/B | 0.025545 | ✓ | | US TREASURY N/B | 0.023505 | ✓ | | TREASURY RESERVE FUND - Collateral | 0.014273 | | | US TREASURY N/B | 0.012939 | ✓ | | US TREASURY N/B | 0.012613 | ✓ | | US TREASURY N/B | 0.012113 | ✓ | | US TREASURY N/B | 0.011530 | ✓ | | US TREASURY N/B | 0.011130 | ✓ | | US TREASURY N/B | 0.010211 | ✓ | | US TREASURY N/B | 0.010086 | ✓ | | US TREASURY N/B | 0.008721 | ✓ | | US TREASURY N/B | 0.008531 | ✓ | | US TREASURY N/B | 0.008125 | ✓ | | US TREASURY N/B | 0.007868 | ✓ | | US TREASURY N/B | 0.006935 | | | G2 MA7649 | 0.006905 | | | US TREASURY N/B | 0.006348 | ✓ | | US TREASURY N/B | 0.006296 | ✓ | | US TREASURY N/B | 0.006099 | ✓ | | US TREASURY N/B | 0.006030 | ✓ | | US TREASURY N/B | 0.005535 | ✓ | | US TREASURY N/B | 0.005519 | ✓ | | US TREASURY N/B | 0.005486 | ✓ | | US TREASURY N/B | 0.005426 | ✓ | | US TREASURY N/B | 0.005354 | ✓ | | US TREASURY N/B | 0.005289 | ✓ | | US TREASURY N/B | 0.005273 | ✓ | | US TREASURY N/B | 0.005104 | ✓ | | US TREASURY N/B | 0.005071 | ✓ | | Uniform Mortgage-Backed Security, TBA | 0.005015 | | | US TREASURY N/B | 0.004828 | ✓ | | US TREASURY N/B | 0.004781 | ✓ | | US TREASURY N/B | 0.004777 | ✓ | | FN MA4208 | 0.004776 | | | US TREASURY N/B | 0.004613 | ✓ | | US TREASURY N/B | 0.004563 | ✓ | | US TREASURY N/B | 0.004509 | ✓ | | FNMA POOL CB9219 FN 09/54 FIXED 6 | 0.004454 | | | US TREASURY N/B | 0.004430 | ✓ | | US TREASURY N/B | 0.004419 | ✓ | | FREDDIE MAC MULTIFAMILY STRUCTURED PASS THROUGH CERTIFICATES | 0.004145 | | | FN MA4325 | 0.004121 | | | FR SD8199 | 0.004002 | | | US TREASURY N/B | 0.003627 | ✓ | | US TREASURY N/B | 0.003524 | ✓ | | FR SD8212 | 0.003510 | | | US TREASURY N/B | 0.003489 | ✓ | | TBA GNMA 30 YR 5.50000000 | 0.003470 | | | US TREASURY N/B | 0.003351 | ✓ | ## Columbia U.S. Treasury Index Fund — top positions | Security | Weight | Shared | |----------|--------|--------| | US TREASURY N/B | 0.009020 | ✓ | | US TREASURY N/B | 0.008851 | ✓ | | US TREASURY N/B | 0.008754 | ✓ | | US TREASURY N/B | 0.008742 | ✓ | | US TREASURY N/B | 0.008599 | ✓ | | US TREASURY N/B | 0.008530 | | | US TREASURY N/B | 0.008526 | | | US TREASURY N/B | 0.008426 | ✓ | | US TREASURY N/B | 0.007907 | ✓ | | US TREASURY N/B | 0.007666 | | | US TREASURY N/B | 0.007246 | | | US TREASURY N/B | 0.007039 | | | US TREASURY N/B | 0.007032 | | | US TREASURY N/B | 0.007031 | | | US TREASURY N/B | 0.007027 | | | US TREASURY N/B | 0.006976 | | | US TREASURY N/B | 0.006954 | | | US TREASURY N/B | 0.006949 | | | US TREASURY N/B | 0.006884 | ✓ | | US TREASURY N/B | 0.006625 | ✓ | | US TREASURY N/B | 0.006609 | | | US TREASURY N/B | 0.006520 | | | US TREASURY N/B | 0.006445 | | | US TREASURY N/B | 0.005704 | | | US TREASURY N/B | 0.005431 | | | US TREASURY N/B | 0.005426 | ✓ | | US TREASURY N/B | 0.005338 | | | US TREASURY N/B | 0.005302 | ✓ | | US TREASURY N/B | 0.005281 | | | US TREASURY N/B | 0.005159 | | | US TREASURY N/B | 0.005133 | | | US TREASURY N/B | 0.005131 | ✓ | | US TREASURY N/B | 0.005119 | ✓ | | US TREASURY N/B | 0.005119 | | | US TREASURY N/B | 0.005108 | ✓ | | US TREASURY N/B | 0.005084 | ✓ | | US TREASURY N/B | 0.005080 | ✓ | | US TREASURY N/B | 0.005058 | ✓ | | US TREASURY N/B | 0.005057 | ✓ | | US TREASURY N/B | 0.005052 | ✓ | | US TREASURY N/B | 0.005035 | | | US TREASURY N/B | 0.005035 | | | US TREASURY N/B | 0.005028 | ✓ | | US TREASURY N/B | 0.005000 | | | US TREASURY N/B | 0.004996 | | | US TREASURY N/B | 0.004982 | | | US TREASURY N/B | 0.004978 | | | US TREASURY N/B | 0.004951 | | | US TREASURY N/B | 0.004949 | | | US TREASURY N/B | 0.004947 | | ## Sources - N-PORT (fund A) — accession `0001099263-26-003716` (as of 2026-01-31) - N-PORT (fund B) — accession `0001410368-26-033335` (as of 2026-01-31) --- _Informational only — not investment advice. FundWatcher presents publicly available data and makes no recommendation to buy or sell any security. Verify all figures against the source filing before relying on them._ _Data sourced from U.S. SEC EDGAR filings (Forms N-PORT, N-CEN, and prospectus Risk/Return summaries). FundWatcher is not affiliated with the SEC._ _Use of this data is subject to the FundWatcher Terms of Service. Information may be used only for personal, non-commercial research and may not be redistributed. See _