| RIZE | Principal Inflation Protection ETF | | |
| RJCA | RJ ClariVest Capital Appreciation ETF | | |
| RJDI | RJ Eagle GCM Dividend Select Income ETF | | |
| RJMI | RJ Eagle Municipal Income ETF | | |
| RJVI | RJ Eagle Vertical Income ETF | | |
| RKLX | Defiance Daily Target 2X Long RKLB ETF | | |
| RKLZ | Defiance Daily Target 2x Short RKLB ETF | | |
| RKNG | Defiance Retail Kings ETF | | |
| RKSG | Ruk Strategic Growth ETF | | |
| RKX | Corgi RKLB 2x Daily ETF | | |
| RLY | State Street Multi-Asset Real Return ETF | | |
| RMBC | Corgi RMBS 2x Daily ETF | | |
| RMBX | Tradr 2X Long RMBS Daily ETF | | |
| RMCA | Rockefeller California Municipal Bond ETF | | |
| RMHY | Global X Adaptive Risk Managed Yield ETF | | |
| RMME | Rareview Government Money Market ETF | | |
| RMNY | Rockefeller New York Municipal Bond ETF | | |
| RMOP | Rockefeller Opportunistic Municipal Bond ETF | | |
| RMRC | ARMOR Core Risk-Managed ETF | | |
| RND | First Trust Bloomberg R&D Leaders ETF | | |
| RNEM | Emerging Markets Equity Select ETF | | |
| RNIN | Bushido Capital US SMID Cap Equity ETF | | |
| RNMN | RiverNorth Market Neutral ETF | | |
| RNRG | Global X Renewable Energy Producers ETF | | |
| RNTY | YieldMax Target 12 Real Estate Option Income ETF | | |
| ROAM | Hartford Multifactor Emerging Markets ETF | | |
| ROBN | T-Rex 2X Long HOOD Daily Target ETF | | |
| ROBO | ROBO Global Robotics and Automation Index ETF | | |
| ROBT | First Trust Nasdaq Artificial Intelligence and Robotics ETF | | |
| ROBX | Amplify Top 10 Robotics ETF | | |
| ROCQ | JPMorgan Nasdaq Equity Premium Yield ETF | | |
| ROCY | JPMorgan Equity Premium Yield ETF | | |
| RODM | Hartford Multifactor Developed Markets (ex-US) ETF | | |
| ROE | Astoria US Equal Weight Quality Kings ETF | | |
| ROKT | State Street SPDR S&P Kensho Final Frontiers ETF | | |
| ROM | ProShares Ultra Technology | | |
| ROMO | Strategy Shares Newfound/ReSolve Robust Momentum ETF | | |
| RONB | Baron First Principles ETF | | |
| ROPE | Coastal Compass 100 ETF | | |
| ROSC | Hartford Multifactor Small Cap ETF | | |
| ROUS | Hartford Multifactor U.S. Equity ETF | | |
| RPAR | RPAR Risk Parity ETF | | |
| RPG | Invesco S&P 500 Pure Growth ETF | | |
| RPV | Invesco S&P 500 Pure Value ETF | | |
| RSBA | Return Stacked Bonds & Merger Arbitrage ETF | | |
| RSBT | Return Stacked Bonds & Managed Futures ETF | | |
| RSBY | Return Stacked Bonds & Futures Yield ETF | | |
| RSDE | FT Vest U.S. Equity Equal Weight Buffer ETF - December | | |
| RSEE | Rareview Systematic Equity ETF | | |
| RSIT | Return Stacked International Stocks & Managed Futures ETF | | |