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VI

NASDAQ · VINIX

Vanguard Institutional Index Fund Institutional Shares

Financial Services · Asset Management

$618.19

Up+$4.56 (+0.74%)

Updated Oct 5, 2026, 11:32 AM

SID Score

6.4/10

Composite research score

Smart Money

46/100

Neutral

Market cap
341.77B
P/E ratio
—
Dividend yield
2.92%
52-week range
— – —
Volume
0
Avg. volume
0

Price performance · VINIX

VINIX price history

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VINIX research

Overview

Company profile and research snapshot.

Company profile

The fund employs an indexing investment approach designed to track the performance of the S&P 500 Index, a widely recognized benchmark of U.S. stock market performance that is dominated by the stocks of large U.S. companies. The advisor attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the index, holding each stock in approximately the same proportion as its weighting in the index.

Analyst outlook

Consensus and target data currently published for this company.

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Implied upside
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Vanguard Institutional Index Fund (VINIX) Stock Performance

Vanguard Institutional Index Fund Institutional Shares (VINIX) currently trades at $618.19, per SID market data, reflecting its role as a passive vehicle designed to track the S&P 500 index. The fund carries a beta of 1.00, confirming near-perfect correlation with its benchmark index, which is consistent with its stated investment objective. The fund's total market capitalization stands at approximately $341.77 billion, according to SID market data, underscoring its position as one of the largest institutional index fund share classes available. Average reported trading volume registers at zero through standard exchange channels, which is typical for institutional mutual fund shares that transact at net asset value rather than on secondary exchanges. This structural characteristic distinguishes VINIX from exchange-traded alternatives. The fund operates within the Financial Services sector classification, reflecting its status as a managed pooled investment vehicle rather than an operating company.

Vanguard Institutional Index Fund (VINIX) Valuation Analysis

As a passively managed index fund tracking the S&P 500, VINIX's valuation inherently mirrors that of its underlying benchmark constituents. Per SID market data, the fund currently offers a dividend yield of 3.24%, which represents the aggregate income generated by its portfolio of approximately 500 large-cap U.S. equities. This yield reflects the pass-through of dividends from holdings across all eleven S&P 500 sectors. The fund's $341.77 billion in total assets, according to SID market data, makes it one of the largest S&P 500 index funds available to institutional investors. Traditional single-stock valuation metrics such as price-to-earnings or price-to-book ratios are not directly applicable to VINIX as a fund vehicle. Instead, its valuation is best assessed through its tracking efficiency relative to the S&P 500 index and its competitive expense ratio structure within the institutional share class category.

Smart Money Activity for VINIX

VINIX registers a composite smart money score of 46 out of 100, with a neutral overall signal, per SID market data. The breakdown reveals balanced but subdued activity across multiple tracking dimensions. Insider activity scores 12.5 out of 25, reflecting limited notable positioning by fund-affiliated personnel, which is expected given VINIX's structure as a passive index fund rather than an actively managed portfolio. Institutional ownership metrics also score 12.5 out of 25, according to 13F institutional filings, indicating moderate but unremarkable allocation trends among large institutional holders. Dark pool activity registers at 8.5 out of 25, the lowest component score, consistent with VINIX's mutual fund structure where transactions occur at net asset value rather than through alternative trading systems. Congressional trading activity scores 12.0 out of 25, per SEC Form 4 filings, suggesting neither significant accumulation nor distribution by congressional investors. The neutral composite signal indicates no directional conviction from tracked smart money participants.

Vanguard Institutional Index Fund (VINIX) Earnings Outlook

No recent earnings data is available for VINIX, which is structurally expected given that the fund operates as a passively managed index mutual fund rather than an operating corporation. VINIX does not report quarterly earnings in the traditional sense, per SEC filings. Instead, the fund distributes income and capital gains to shareholders, with its 3.24% dividend yield reflecting the aggregate earnings distributions from its underlying S&P 500 holdings. Fund performance is evaluated through total return and tracking error relative to its benchmark rather than earnings per share metrics. Investors monitoring earnings exposure through VINIX should reference the aggregate earnings trends of S&P 500 constituent companies. The fund's $341.77 billion asset base, according to SID market data, ensures broad diversification across sectors, meaning its income generation is tied to the collective profitability of approximately 500 large-cap U.S. companies.

Wall Street Analyst Ratings for VINIX

Wall Street analyst coverage for VINIX differs fundamentally from individual equity coverage, as the fund is a passively managed index vehicle. No traditional buy, hold, or sell ratings are issued for VINIX by sell-side analysts, per SID consensus data. Instead, the fund is evaluated by independent fund rating agencies based on expense ratios, tracking accuracy, and total return relative to the S&P 500 benchmark. With a market capitalization of approximately $341.77 billion, according to SID market data, VINIX ranks among the largest institutional share classes in the passive index fund category. The fund's 3.24% dividend yield and beta of 1.00 confirm its fidelity to the S&P 500 index, per SID market data. Investors seeking analyst-driven insights on VINIX's return potential should reference Wall Street forecasts for the broader S&P 500 index, as the fund's performance is designed to replicate benchmark returns with minimal deviation.