# ProShares Short MidCap400 (MYY) — Overview

MYY · NYSE · Fund

Canonical page: https://www.lighthorse.io/tickers/myy

## Price

Last close $15.85 on Oct 15, 2026. 52-week range $14.75 – $18.77.

## Fund profile

MYY provides inverse exposure to a market cap-weighted index of 400 US mid-cap companies.

| Metric | Value |
| --- | --- |
| Issuer | ProShare Advisors |
| Industry | — |
| Inception | Jun 19, 2006 |
| Assets under management | $3.5M |
| Expense ratio | 0.95% |
| Net asset value | $16.02 (as of Oct 14, 2026) |
| Distributions | Quarterly |
| Leverage | 1x |

## Frequently Asked Questions

### What is ProShares Short MidCap400 (MYY)?

MYY provides inverse exposure to a market cap-weighted index of 400 US mid-cap companies.

### What is MYY's expense ratio?

ProShares Short MidCap400 charges an annual expense ratio of 0.95%. The fund is issued by ProShare Advisors.

### How large is MYY?

ProShares Short MidCap400 manages $3.5M in assets and has traded since Jun 19, 2006.

### How do I buy shares of ProShares Short MidCap400 (MYY)?

MYY trades commission-free with a Light Horse Securities brokerage account — from the mobile app, the web at [Light Horse Dashboard](https://portal.lighthorse.io), the trading API, or an [AI agent connected over MCP](/instructions/ai/claude). The trade panel on this page places the order once you are signed in.

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Quotes and charts are not real-time and must not be relied on for trade decisions or valuation.

This page is for informational purposes only. Nothing on it is a recommendation, solicitation or offer to buy or sell any security, nor investment, legal or tax advice. Light Horse Securities Inc does not verify third-party data and is not responsible for its accuracy, completeness or timeliness.

Data provided by [AInvest](https://www.ainvest.com).