Bruce Rudolph Albelda

Excel Switching Corp develops and provides modular, multi-service platform that can be transitioned from TDM to an all-IP network. Solutions provided by the company reduces development costs by eliminating the need to develop separate solutions for each network or protocol environment. The company is located in Hyannis, MA.

Brooktrout, Inc. was engaged in the development, manufacture and sale of software and hardware products that enable the development of communications systems and services. The company offered various products including fax platforms, enterprise voice platforms, carrier enhanced services platforms and application programming interfaces. It supplied products for media processing, network interface, call control and signal processing including protocols that allowed Internet and traditional telephony systems to communicate. The company was located in Needham, MA.

Founded in 2001 by David Hooten, Claymore Securities, Inc. is a registered investment advisor based in Lilse, Illinois with offices in Conshohocken, Pennsylvania and Princeton, New Jersey. The firm also does business as Claymore Advisors LLC. They are a subsidiary of the Claymore Group, Inc. The firm is a wholly-owned subsidiary of Guggenheim Capital LLC, a global, independent, privately-held, diversified financial services firm that, through their affiliates, provides investment management, investment advisory, insurance, investment banking and capital markets services. Guggenheim Capital is headquartered in Chicago and New York City with offices throughout the US, Europe and Asia. Claymore Securities provides investment management services to financial advisors and their clients.

EAS Group, Inc. develops and manufactures multi-protocol network platforms. It offers Internet protocol and signaling gateways, media servers, and service platforms to enable carriers to deploy voice messaging and wireless phone services. The company is headquartered in Hyannis, MA.

iShares Silver Bullion ETF is a Closed-End Investment Fund/Investment Trust. Its objective is to replicate the price performance of silver bullion, less the Fund's expenses and fees. The company was founded on June 29, 2009 and is headquartered in Toronto, Canada.

Claymore Dividend & Income Fund is a closed-end investment fund/Investment trust. It offers strategic investment solutions for financial advisors and their valued clients. It also provides investment management, investment advisory, insurance, investment banking and capital markets services. The company was founded on January 27, 2004 and is headquartered in Lisle, IL.

Guggenheim Taxable Municipal Bond & Investment Grade Debt Trust is a diversified and closed-end management investment company, which engages in the investment activities for long-term capital appreciation. The company was founded on June 30, 2010 and is headquartered in Chicago, IL.

Managed Duration Investment Grade Municipal Fund operates as a closed-end investment fund/trust. It intends to provide its shareholders with current income exempt from federal income tax while seeking to protect the value of the assets during periods of interest rate volatility. The company was founded on May 20, 2003 and is headquartered in New York, NY.

Guggenheim Strategic Opportunities Fund operates as a diversified, closed-end management investment company. The fund intends to maximize total return through a combination of current income and capital appreciation. It pursues a relative value-based investment philosophy, which utilizes quantitative and qualitative analysis to seek to identify securities or spreads between securities that deviate from their perceived fair value and/or historical norms. The company was founded on November 13, 2006 and is headquartered in Chicago, IL.