TLT vs VIMAX: 0% overlap
iShares 20+ Year Treasury Bond ETF and Vanguard Mid-Cap Index Admiral share 0.0% of their portfolios by weight — computed as Σ min(wA, wB) over every holding both funds own.
You would hold two tickers and get the diversification of 2.0. Two funds that shared nothing would score 2.0; two identical funds score 1.0.
Top shared holdings
TLT and VIMAX hold 1 of the same securities. The ten contributing most to the overlap figure:
| Holding | in TLT | in VIMAX | Δ |
|---|---|---|---|
| CASH | 0.0% | 0.5% | 0.5% |
Where TLT and VIMAX differ
Sector weights as a share of each fund, ordered by the size of the gap rather than the size of the sector — two funds that overlap heavily still usually diverge somewhere.
| Sector | TLT | VIMAX | Δ |
|---|---|---|---|
| Treasuries | 100.0% | 0.0% | +100.0pp |
| Industrials | 0.0% | 19.6% | −19.6pp |
| Information Technology | 0.0% | 16.1% | −16.1pp |
| Financials | 0.0% | 14.0% | −14.0pp |
| Consumer Discretionary | 0.0% | 8.9% | −8.9pp |
| Utilities | 0.0% | 8.4% | −8.4pp |
| Health Care | 0.0% | 7.8% | −7.8pp |
| Energy | 0.0% | 7.3% | −7.3pp |
Δ is TLT minus VIMAX, in percentage points. Sector data is not published by every issuer, so “Unclassified” is a real category rather than a gap in the table.
What each fund holds alone
100.0% of TLT by weight, held in no part of VIMAX.
99.5% of VIMAX by weight, held in no part of TLT.
A large count with a small weight is the usual shape: the positions one fund adds are typically its smallest ones.
Concentration and cost
| TLT | VIMAX | |
|---|---|---|
| Top 10 holdings | 100.0% | 9.5% |
| Positions held | 3 | 283 |
| Cost per $10,000 held, per year | $15 | $5 |
Cost is the expense ratio applied to $10,000; it excludes any brokerage commission, bid-ask spread or tax consequence. Figures are facts about the funds, not a suggestion about which to hold.
Frequently asked
How much do TLT and VIMAX overlap?
TLT and VIMAX overlap 0.0% by portfolio weight — largely distinct portfolios. They share 1 holdings. The figure comes from current issuer holdings files (TLT as of 2026-07-23, VIMAX as of 2026-06-30).
How is the overlap between TLT and VIMAX calculated?
As the sum of the smaller weight in each fund, over every holding both funds own: Σ min(wA, wB). If TLT holds a stock at 6% and VIMAX holds the same stock at 4%, 4% counts as shared. The result is bounded between 0% and 100%, and it is computed after looking through any fund-of-funds to the underlying holdings.
Is it redundant to hold both TLT and VIMAX?
That depends on your goals — we state facts, not advice. At 0.0% overlap, each fund still contributes meaningfully distinct exposure.
What does TLT own that VIMAX doesn't?
TLT holds 3 positions and VIMAX holds 283; 1 of TLT's positions don't appear in VIMAX at all, and they are 100.0% of TLT by weight.
You probably hold more than two funds
This page compares TLT and VIMAX. Paste your whole portfolio — brokerage, 401(k), IRA — and see the overlap across every fund at once, plus what you actually own underneath them and your own Effective Funds number. Free, no account, nothing stored.
X-ray my portfolio — free →Watch TLT vs VIMAX
We re-read both funds’ published holdings every weeknight. Leave an address and we'll tell you when what's inside actually changes.
Not sending yet — email alerts are built but switched off, and you'll be among the first when they turn on. No spam, one-click unsubscribe.
Related comparisons
Sources: issuer holdings files, TLT as of 2026-07-23, VIMAX as of 2026-06-30. Weights are fractions of each fund. Diagnostics, not advice.