Investment process

We follow a Strategic Asset Allocation approach. The SAA reflects the targeted long-term asset allocation that aims to achieve our investment objectives in the most optimal manner, factoring in risk and return. We take shorter term tactical tilts away from the SAA investing into countries, sectors, factors and themes where we believe there is a profitable upward move. Both the SAA and TAA are driven by global macro research and bottom up valuation.

Strategic Asset Allocation

Our process begins by working with our clients to decide the correct long term strategic asset allocation which means some clients have more, or less, equity or bonds in their portfolio. At this stage of the process consideration is given to whether the client wants (or needs) a GBP, USD or EUR base currency for their portfolio.

We match most of the client’s bond exposure to the base currency, but we are currency agnostic with respect to equities. In other words, because our equity exposure is global our clients own global currencies on an unhedged basis. More on this in the FAQ’s.


Tactically we shift clients into regions, countries or sectors which we think offer relative attractive value. Markets are not perfectly efficient and news flow relating to economic, geo-political or other news can result in regions, countries or sectors overshooting on the upside or downside. We are humble enough to know that adding tactical “alpha” is an arduous task and thus we do not want to over allocate to a particular idea. We use a risk framework including VAR, volatility, max drawdown amongst other metrics to guide our sizing. We are not traders, we are investors and our tactical views typically have at least a 6- 18 month time frame although may be in place for several years.


For our Separately Managed Accounts we implement our asset allocation views using ONLY Exchange Traded Funds which have great liquidity, are physically backed by underlying shares or bonds and which have the most efficient tax status for our clients following a rigorous ETF due diligence process.

The benefits of this approach are numerous.


OMBA does a combination of calendar quarterly (Jan, April, July, Oct) rebalancing coupled with Percentage of Portfolio rebalancing.
Importance of rebalancing:

  • Keeps a portfolio at the appropriate level of risk.
  • Creates an opportunity for better returns – systematically selling assets which have gone up and buying those which have gone down. Buy low, Sell high.
  • When assets move to extremes there is a need to trigger a rebalancing trade that buys or sells the investment just before it “snaps back” and reverts towards its long-term average.
  • Instils discipline in the investment process.

Important considerations for rebalancing:

  • Rebalancing can be done too frequently. For instance, if an investment was about to have significant outperformance for a year, rebalancing monthly will trigger a considerable number of sales before the year’s gains have occurred, leaving upside on the table.
  • Likewise, if the investment was about to decline in a year-long fall, rebalancing monthly into the falling investment will result in buying more to then experience the subsequent decline.
  • Transactions costs, correlation of asset classes and the volatility of the asset classes impact timing and thresholds.
  • Rebalancing will typically result in tax consequences, which should be considered.
  • Rebalancing to within the target range or to the original target level needs to be considered.