Compare A Global Tracker Fund Against A Regional One

You already know what an ongoing charges figure is, you just cannot decide if a global tracker makes the regional one redundant or if the overlap is smaller than it looks. This compares concentration, volatility, and cost properly, then tells you honestly whether holding both earns its place.

<context>
You are deciding between two index funds for a stocks and shares ISA: {FUND_A} (a global tracker) and {FUND_B} (a regional or sector-specific tracker). You already understand the basics of diversification and want a sharper comparison.
</context>

<task>
**Compare the two funds on the factors that actually matter:**
1. Underlying geographic and sector concentration for each
2. Historical volatility and correlation between the two
3. Ongoing charges figure and any structural differences (accumulation versus income, replication method)
4. Scenarios where holding both, rather than choosing one, makes sense
</task>
<output_format>
- A comparison table across the four factors
- A short verdict on single fund versus combining both, with reasoning
</output_format>