How would you define the success of M1 (Financial Software)'s fractional share investing capability?

Introduction

Defining the success of M1's fractional share investing capability is crucial for evaluating this feature's impact and guiding future development. To approach this product success metrics problem effectively, I'll follow a structured framework that covers core metrics, supporting indicators, and risk factors while considering all key stakeholders.

Step 1

Product Context

M1's fractional share investing feature allows users to purchase partial shares of stocks, enabling more accessible and diversified investing. This capability is particularly valuable for retail investors with limited capital who want to build diversified portfolios.

Key stakeholders include:

1. Retail investors (primary users)
2. M1 Finance (the company)
3. Regulatory bodies
4. Stock exchanges and market makers

The user flow typically involves:

1. Account setup and funding
2. Creating investment "pies" or selecting pre-made portfolios
3. Executing trades, which M1 batches and processes during trading windows
4. Monitoring and rebalancing investments over time

This feature aligns with M1's broader strategy of democratizing investing and providing sophisticated tools to retail investors. Compared to competitors like Robinhood or Fidelity, M1's approach focuses more on long-term, automated investing rather than active trading.

In terms of product lifecycle, fractional share investing is in the growth stage, with increasing adoption among retail investors but still room for expansion and refinement.