Rydex

Rydex appears in vol.121.从昙花一现的分级基金到风头正劲的杠杆ETF：永远不要低估人性的疯狂 as the early leveraged-mutual-fund issuer in the episode’s global history. The source says Rydex launched an early leveraged public fund tied to the S&P 500 and then an inverse public fund, before leveraged ETFs became the better-known format.

The entity matters in the wiki because it shows that retail-accessible leverage did not begin with the recent single-stock ETF boom. The same suitability problem existed once public funds started offering amplified daily exposure to ordinary investors.

Connections

• Leveraged ETF / 杠杆 ETF - later product category that made leverage more directly tradable.
• Daily Leverage Reset and Leveraged Product Suitability - mechanisms and warnings attached to public leveraged funds.
• XACT and ProShares - later issuer history discussed by the source.