The phrase "array of securities that" is correct and usable in written English.
It can be used in financial contexts to describe a collection or variety of financial instruments or assets.
Example: "The investment firm offers an array of securities that cater to different risk appetites and investment goals."
Alternatives: "collection of securities that" or "variety of securities that".
One huge controversy: TARP funds helped AIG pay its counterparties an array of Wall Street's biggest banks 100% of the face value of securities that were worth far less.
Late Tuesday, the French Parliament advanced a far-reaching array of security policies that critics said would strike at the heart of civil liberties.
Timely, accurate intelligence is absolutely critical to disrupting terrorist attacks, dismantling al Qaeda and its affiliates, and meeting the broad array of security challenges that we face as a nation.
That company would be financed by investors who bought an array of auction-rate securities that reset every month.
The Islamic State bombings this week exposed lingering gaps in Baghdad's defenses, which are manned by an array of security agencies and militias that don't always cooperate.
What once was one of Wall Street's biggest investment banks is now essentially a holding company for assets that include vast real estate holdings and an array of securities like derivatives.
The rest of the offerings the quarter included an array of securities like mortgage-backed securities.
It has bought a wide array of securities, including government bonds whose rates influence lending costs throughout the economy.
Nadella pointed out that we face an increasingly broad array of security threats across a number of devices using a variety of attack techniques.
To be effective at automation, SecOps orchestration platforms from Phantom, CyberSponse and Invotas (recently acquired by FireEye) rely on "recipes" that read from, and write to, a wide array of security appliances built by third-party vendors.
