Fund comparison · from official SEC filings
IBIC vs RBIL: how much do they overlap?
iShares iBonds Oct 2026 Term TIPS ETF and F/m Ultrashort Treasury Inflation-Protected Security (TIPS) ETF
vs
IBIC and RBIL are largely redundant — holding both means most of your money tracks the same underlying companies.
Shared holdings
Company
IBIC
RBIL
T
TII 0.125 10.15.26TSY INFL IX N/B
38.40%
25.91%
T
TII 0.125 07.15.26TSY INFL IX N/B
34.15%
24.48%
Only in IBIC
X
XTSLABLCKRCK CASH-TRSRY-SL AGNCY
27.45%
Only in RBIL
T
TII 0.125 04.15.27TSY INFL IX N/B
24.78%
T
TII 0.375 01.15.27TSY INFL IX N/B
17.43%
T
TII 2.375 01.15.27TSY INFL IX N/B
7.40%
Hold IBIC and RBIL together? See your combined true holdings, overlap, and blended fees — free, no signup.
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49% overlap
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20% overlap
RBIL vs VTIPVANGUARD SHORT-TERM INFLATION-PROTECTED SECURITIES INDEX FUND
20% overlap
Data source: official SEC Form N-PORT filings from each fund. Fund holdings are disclosed quarterly and may reflect a 60-day reporting delay.
Informational and educational only — not investment advice.
Informational and educational only — not investment advice.