The only thing I don't understand is how your platform benefits from allowing to trade from $100 and such little shares
Actually, that's exactly a new window of opportunity. Micro investors, who are interested to invest just a bit or invest with a spare cash, or simply gamble with a little of money represent an already huge and growing market. Take a look at Acorns, or Stash as examples in classic finance.
So basically the strategy is to attract more small investors and make profits on the economy of scale?
Trading of digital assets on the exchange secured by real assets of the financial market (stocks, bonds, currency) may be of interest to all market participants.
The small private cryptoinvestors will have access to owning a real financial asset for the cryptocurrency while remaining in the crypto market ecosystem. Small private financial investors will receive a clear and accessible mechanism for entering the crypto market.
Professional traders will be able to diversify their trading strategies and hedge their positions. They can easily move from the Fiat market to the crypto market and back.
Large private (family) capital will be able to diversify their financial assets and receive additional profits from their possessions.
Large professional investors will receive an additional mechanism for hedging their investments, long-term investments and possession of financial and crypto assets.